21789900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 216

約数和(自身を含む): 77995008

約数和(自身を除く): 56205108

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 30, 31, 33, 36, 44, 45, 50, 55, 60, 62, 66, 71, 75, 90, 93, 99, 100, 110, 124, 132, 142, 150, 155, 165, 180, 186, 198, 213, 220, 225, 275, 279, 284, 300, 310, 330, 341, 355, 372, 396, 426, 450, 465, 495, 550, 558, 620, 639, 660, 682, 710, 775, 781, 825, 852, 900, 930, 990, 1023, 1065, 1100, 1116, 1278, 1364, 1395, 1420, 1550, 1562, 1650, 1705, 1775, 1860, 1980, 2046, 2130, 2201, 2325, 2343, 2475, 2556, 2790, 3069, 3100, 3124, 3195, 3300, 3410, 3550, 3905, 4092, 4260, 4402, 4650, 4686, 4950, 5115, 5325, 5580, 6138, 6390, 6603, 6820, 6975, 7029, 7100, 7810, 8525, 8804, 9300, 9372, 9900, 10230, 10650, 11005, 11715, 12276, 12780, 13206, 13950, 14058, 15345, 15620, 15975, 17050, 19525, 19809, 20460, 21300, 22010, 23430, 24211, 25575, 26412, 27900, 28116, 30690, 31950, 33015, 34100, 35145, 39050, 39618, 44020, 46860, 48422, 51150, 55025, 58575, 61380, 63900, 66030, 70290, 72633, 76725, 78100, 79236, 96844, 99045, 102300, 110050, 117150, 121055, 132060, 140580, 145266, 153450, 165075, 175725, 198090, 217899, 220100, 234300, 242110, 290532, 306900, 330150, 351450, 363165, 396180, 435798, 484220, 495225, 605275, 660300, 702900, 726330, 871596, 990450, 1089495, 1210550, 1452660, 1815825, 1980900, 2178990, 2421100, 3631650, 4357980, 5447475, 7263300, 10894950, 21789900]

約数ペア:

[(1, 21789900), (2, 10894950), (3, 7263300), (4, 5447475), (5, 4357980), (6, 3631650), (9, 2421100), (10, 2178990), (11, 1980900), (12, 1815825), (15, 1452660), (18, 1210550), (20, 1089495), (22, 990450), (25, 871596), (30, 726330), (31, 702900), (33, 660300), (36, 605275), (44, 495225), (45, 484220), (50, 435798), (55, 396180), (60, 363165), (62, 351450), (66, 330150), (71, 306900), (75, 290532), (90, 242110), (93, 234300), (99, 220100), (100, 217899), (110, 198090), (124, 175725), (132, 165075), (142, 153450), (150, 145266), (155, 140580), (165, 132060), (180, 121055), (186, 117150), (198, 110050), (213, 102300), (220, 99045), (225, 96844), (275, 79236), (279, 78100), (284, 76725), (300, 72633), (310, 70290), (330, 66030), (341, 63900), (355, 61380), (372, 58575), (396, 55025), (426, 51150), (450, 48422), (465, 46860), (495, 44020), (550, 39618), (558, 39050), (620, 35145), (639, 34100), (660, 33015), (682, 31950), (710, 30690), (775, 28116), (781, 27900), (825, 26412), (852, 25575), (900, 24211), (930, 23430), (990, 22010), (1023, 21300), (1065, 20460), (1100, 19809), (1116, 19525), (1278, 17050), (1364, 15975), (1395, 15620), (1420, 15345), (1550, 14058), (1562, 13950), (1650, 13206), (1705, 12780), (1775, 12276), (1860, 11715), (1980, 11005), (2046, 10650), (2130, 10230), (2201, 9900), (2325, 9372), (2343, 9300), (2475, 8804), (2556, 8525), (2790, 7810), (3069, 7100), (3100, 7029), (3124, 6975), (3195, 6820), (3300, 6603), (3410, 6390), (3550, 6138), (3905, 5580), (4092, 5325), (4260, 5115), (4402, 4950), (4650, 4686)]