20774985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17987}}^1$

素因数の和:18013

約数の個数: 32

約数和(自身を含む): 41444352

約数和(自身を除く): 20669367

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17987, 53961, 89935, 125909, 197857, 269805, 377727, 593571, 629545, 989285, 1384999, 1888635, 2967855, 4154997, 6924995, 20774985]

約数ペア:

[(1, 20774985), (3, 6924995), (5, 4154997), (7, 2967855), (11, 1888635), (15, 1384999), (21, 989285), (33, 629545), (35, 593571), (55, 377727), (77, 269805), (105, 197857), (165, 125909), (231, 89935), (385, 53961), (1155, 17987)]