399341998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{229771}}^1$

素因数の和:229863

約数の個数: 16

約数和(自身を含む): 661743360

約数和(自身を除く): 262401362

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 229771, 459542, 2527481, 5054962, 18151909, 36303818, 199670999, 399341998]

約数ペア:

[(1, 399341998), (2, 199670999), (11, 36303818), (22, 18151909), (79, 5054962), (158, 2527481), (869, 459542), (1738, 229771)]