21515340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4657}}^1$

素因数の和:4687

約数の個数: 96

約数和(自身を含む): 75124224

約数和(自身を除く): 53608884

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4620, 4657, 9314, 13971, 18628, 23285, 27942, 32599, 46570, 51227, 55884, 65198, 69855, 93140, 97797, 102454, 130396, 139710, 153681, 162995, 195594, 204908, 256135, 279420, 307362, 325990, 358589, 391188, 488985, 512270, 614724, 651980, 717178, 768405, 977970, 1024540, 1075767, 1434356, 1536810, 1792945, 1955940, 2151534, 3073620, 3585890, 4303068, 5378835, 7171780, 10757670, 21515340]

約数ペア:

[(1, 21515340), (2, 10757670), (3, 7171780), (4, 5378835), (5, 4303068), (6, 3585890), (7, 3073620), (10, 2151534), (11, 1955940), (12, 1792945), (14, 1536810), (15, 1434356), (20, 1075767), (21, 1024540), (22, 977970), (28, 768405), (30, 717178), (33, 651980), (35, 614724), (42, 512270), (44, 488985), (55, 391188), (60, 358589), (66, 325990), (70, 307362), (77, 279420), (84, 256135), (105, 204908), (110, 195594), (132, 162995), (140, 153681), (154, 139710), (165, 130396), (210, 102454), (220, 97797), (231, 93140), (308, 69855), (330, 65198), (385, 55884), (420, 51227), (462, 46570), (660, 32599), (770, 27942), (924, 23285), (1155, 18628), (1540, 13971), (2310, 9314), (4620, 4657)]