21417900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:109

約数の個数: 216

約数和(自身を含む): 75995136

約数和(自身を除く): 54577236

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 31, 35, 42, 47, 49, 50, 60, 62, 70, 75, 84, 93, 94, 98, 100, 105, 124, 140, 141, 147, 150, 155, 175, 186, 188, 196, 210, 217, 235, 245, 282, 294, 300, 310, 329, 350, 372, 420, 434, 465, 470, 490, 525, 564, 588, 620, 651, 658, 700, 705, 735, 775, 868, 930, 940, 980, 987, 1050, 1085, 1175, 1225, 1302, 1316, 1410, 1457, 1470, 1519, 1550, 1645, 1860, 1974, 2100, 2170, 2303, 2325, 2350, 2450, 2604, 2820, 2914, 2940, 3038, 3100, 3255, 3290, 3525, 3675, 3948, 4340, 4371, 4557, 4606, 4650, 4700, 4900, 4935, 5425, 5828, 6076, 6510, 6580, 6909, 7050, 7285, 7350, 7595, 8225, 8742, 9114, 9212, 9300, 9870, 10199, 10850, 11515, 13020, 13818, 14100, 14570, 14700, 15190, 16275, 16450, 17484, 18228, 19740, 20398, 21700, 21855, 22785, 23030, 24675, 27636, 29140, 30380, 30597, 32550, 32900, 34545, 36425, 37975, 40796, 43710, 45570, 46060, 49350, 50995, 57575, 61194, 65100, 69090, 71393, 72850, 75950, 87420, 91140, 98700, 101990, 109275, 113925, 115150, 122388, 138180, 142786, 145700, 151900, 152985, 172725, 203980, 214179, 218550, 227850, 230300, 254975, 285572, 305970, 345450, 356965, 428358, 437100, 455700, 509950, 611940, 690900, 713930, 764925, 856716, 1019900, 1070895, 1427860, 1529850, 1784825, 2141790, 3059700, 3569650, 4283580, 5354475, 7139300, 10708950, 21417900]

約数ペア:

[(1, 21417900), (2, 10708950), (3, 7139300), (4, 5354475), (5, 4283580), (6, 3569650), (7, 3059700), (10, 2141790), (12, 1784825), (14, 1529850), (15, 1427860), (20, 1070895), (21, 1019900), (25, 856716), (28, 764925), (30, 713930), (31, 690900), (35, 611940), (42, 509950), (47, 455700), (49, 437100), (50, 428358), (60, 356965), (62, 345450), (70, 305970), (75, 285572), (84, 254975), (93, 230300), (94, 227850), (98, 218550), (100, 214179), (105, 203980), (124, 172725), (140, 152985), (141, 151900), (147, 145700), (150, 142786), (155, 138180), (175, 122388), (186, 115150), (188, 113925), (196, 109275), (210, 101990), (217, 98700), (235, 91140), (245, 87420), (282, 75950), (294, 72850), (300, 71393), (310, 69090), (329, 65100), (350, 61194), (372, 57575), (420, 50995), (434, 49350), (465, 46060), (470, 45570), (490, 43710), (525, 40796), (564, 37975), (588, 36425), (620, 34545), (651, 32900), (658, 32550), (700, 30597), (705, 30380), (735, 29140), (775, 27636), (868, 24675), (930, 23030), (940, 22785), (980, 21855), (987, 21700), (1050, 20398), (1085, 19740), (1175, 18228), (1225, 17484), (1302, 16450), (1316, 16275), (1410, 15190), (1457, 14700), (1470, 14570), (1519, 14100), (1550, 13818), (1645, 13020), (1860, 11515), (1974, 10850), (2100, 10199), (2170, 9870), (2303, 9300), (2325, 9212), (2350, 9114), (2450, 8742), (2604, 8225), (2820, 7595), (2914, 7350), (2940, 7285), (3038, 7050), (3100, 6909), (3255, 6580), (3290, 6510), (3525, 6076), (3675, 5828), (3948, 5425), (4340, 4935), (4371, 4900), (4557, 4700), (4606, 4650)]