20938734290

素因数分解:

$2^1\times 5^1\times {\mathrm{4211}}^1\times {\mathrm{497239}}^1$

素因数の和:501457

約数の個数: 16

約数和(自身を含む): 37698747840

約数和(自身を除く): 16760013550

約数列:

[1, 2, 5, 10, 4211, 8422, 21055, 42110, 497239, 994478, 2486195, 4972390, 2093873429, 4187746858, 10469367145, 20938734290]

約数ペア:

[(1, 20938734290), (2, 10469367145), (5, 4187746858), (10, 2093873429), (4211, 4972390), (8422, 2486195), (21055, 994478), (42110, 497239)]