9781442

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4079}}^1$

素因数の和:4201

約数の個数: 16

約数和(自身を含む): 16156800

約数和(自身を除く): 6375358

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 4079, 8158, 44869, 89738, 444611, 889222, 4890721, 9781442]

約数ペア:

[(1, 9781442), (2, 4890721), (11, 889222), (22, 444611), (109, 89738), (218, 44869), (1199, 8158), (2398, 4079)]