21912420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5987}}^1$

素因数の和:6060

約数の個数: 48

約数和(自身を含む): 62371008

約数和(自身を除く): 40458588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5987, 11974, 17961, 23948, 29935, 35922, 59870, 71844, 89805, 119740, 179610, 359220, 365207, 730414, 1095621, 1460828, 1826035, 2191242, 3652070, 4382484, 5478105, 7304140, 10956210, 21912420]

約数ペア:

[(1, 21912420), (2, 10956210), (3, 7304140), (4, 5478105), (5, 4382484), (6, 3652070), (10, 2191242), (12, 1826035), (15, 1460828), (20, 1095621), (30, 730414), (60, 365207), (61, 359220), (122, 179610), (183, 119740), (244, 89805), (305, 71844), (366, 59870), (610, 35922), (732, 29935), (915, 23948), (1220, 17961), (1830, 11974), (3660, 5987)]