21489045

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1249}}^1$

素因数の和:1325

約数の個数: 32

約数和(自身を含む): 36480000

約数和(自身を除く): 14990955

約数列:

[1, 3, 5, 15, 31, 37, 93, 111, 155, 185, 465, 555, 1147, 1249, 3441, 3747, 5735, 6245, 17205, 18735, 38719, 46213, 116157, 138639, 193595, 231065, 580785, 693195, 1432603, 4297809, 7163015, 21489045]

約数ペア:

[(1, 21489045), (3, 7163015), (5, 4297809), (15, 1432603), (31, 693195), (37, 580785), (93, 231065), (111, 193595), (155, 138639), (185, 116157), (465, 46213), (555, 38719), (1147, 18735), (1249, 17205), (3441, 6245), (3747, 5735)]