21380700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 216

約数和(自身を含む): 73884160

約数和(自身を除く): 52503460

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 25, 30, 31, 33, 38, 44, 50, 55, 57, 60, 62, 66, 75, 76, 93, 95, 100, 110, 114, 121, 124, 132, 150, 155, 165, 186, 190, 209, 220, 228, 242, 275, 285, 300, 310, 330, 341, 363, 372, 380, 418, 465, 475, 484, 550, 570, 589, 605, 620, 627, 660, 682, 726, 775, 825, 836, 930, 950, 1023, 1045, 1100, 1140, 1178, 1210, 1254, 1364, 1425, 1452, 1550, 1650, 1705, 1767, 1815, 1860, 1900, 2046, 2090, 2299, 2325, 2356, 2420, 2508, 2850, 2945, 3025, 3100, 3135, 3300, 3410, 3534, 3630, 3751, 4092, 4180, 4598, 4650, 5115, 5225, 5700, 5890, 6050, 6270, 6479, 6820, 6897, 7068, 7260, 7502, 8525, 8835, 9075, 9196, 9300, 10230, 10450, 11253, 11495, 11780, 12100, 12540, 12958, 13794, 14725, 15004, 15675, 17050, 17670, 18150, 18755, 19437, 20460, 20900, 22506, 22990, 25575, 25916, 27588, 29450, 31350, 32395, 34100, 34485, 35340, 36300, 37510, 38874, 44175, 45012, 45980, 51150, 56265, 57475, 58900, 62700, 64790, 68970, 71269, 75020, 77748, 88350, 93775, 97185, 102300, 112530, 114950, 129580, 137940, 142538, 161975, 172425, 176700, 187550, 194370, 213807, 225060, 229900, 281325, 285076, 323950, 344850, 356345, 375100, 388740, 427614, 485925, 562650, 647900, 689700, 712690, 855228, 971850, 1069035, 1125300, 1425380, 1781725, 1943700, 2138070, 3563450, 4276140, 5345175, 7126900, 10690350, 21380700]

約数ペア:

[(1, 21380700), (2, 10690350), (3, 7126900), (4, 5345175), (5, 4276140), (6, 3563450), (10, 2138070), (11, 1943700), (12, 1781725), (15, 1425380), (19, 1125300), (20, 1069035), (22, 971850), (25, 855228), (30, 712690), (31, 689700), (33, 647900), (38, 562650), (44, 485925), (50, 427614), (55, 388740), (57, 375100), (60, 356345), (62, 344850), (66, 323950), (75, 285076), (76, 281325), (93, 229900), (95, 225060), (100, 213807), (110, 194370), (114, 187550), (121, 176700), (124, 172425), (132, 161975), (150, 142538), (155, 137940), (165, 129580), (186, 114950), (190, 112530), (209, 102300), (220, 97185), (228, 93775), (242, 88350), (275, 77748), (285, 75020), (300, 71269), (310, 68970), (330, 64790), (341, 62700), (363, 58900), (372, 57475), (380, 56265), (418, 51150), (465, 45980), (475, 45012), (484, 44175), (550, 38874), (570, 37510), (589, 36300), (605, 35340), (620, 34485), (627, 34100), (660, 32395), (682, 31350), (726, 29450), (775, 27588), (825, 25916), (836, 25575), (930, 22990), (950, 22506), (1023, 20900), (1045, 20460), (1100, 19437), (1140, 18755), (1178, 18150), (1210, 17670), (1254, 17050), (1364, 15675), (1425, 15004), (1452, 14725), (1550, 13794), (1650, 12958), (1705, 12540), (1767, 12100), (1815, 11780), (1860, 11495), (1900, 11253), (2046, 10450), (2090, 10230), (2299, 9300), (2325, 9196), (2356, 9075), (2420, 8835), (2508, 8525), (2850, 7502), (2945, 7260), (3025, 7068), (3100, 6897), (3135, 6820), (3300, 6479), (3410, 6270), (3534, 6050), (3630, 5890), (3751, 5700), (4092, 5225), (4180, 5115), (4598, 4650)]