20198064747

素因数分解:

$3^1\times 7^2\times {\mathrm{137401801}}^1$

素因数の和:137401818

約数の個数: 12

約数和(自身を含む): 31327610856

約数和(自身を除く): 11129546109

約数列:

[1, 3, 7, 21, 49, 147, 137401801, 412205403, 961812607, 2885437821, 6732688249, 20198064747]

約数ペア:

[(1, 20198064747), (3, 6732688249), (7, 2885437821), (21, 961812607), (49, 412205403), (147, 137401801)]