388634985

素因数分解:

$3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{49921}}^1$

素因数の和:50105

約数の個数: 24

約数和(自身を含む): 677541384

約数和(自身を除く): 288906399

約数列:

[1, 3, 5, 9, 15, 45, 173, 519, 865, 1557, 2595, 7785, 49921, 149763, 249605, 449289, 748815, 2246445, 8636333, 25908999, 43181665, 77726997, 129544995, 388634985]

約数ペア:

[(1, 388634985), (3, 129544995), (5, 77726997), (9, 43181665), (15, 25908999), (45, 8636333), (173, 2246445), (519, 748815), (865, 449289), (1557, 249605), (2595, 149763), (7785, 49921)]