390481994

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1212677}}^1$

素因数の和:1212709

約数の個数: 16

約数和(自身を含む): 698502528

約数和(自身を除く): 308020534

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 1212677, 2425354, 8488739, 16977478, 27891571, 55783142, 195240997, 390481994]

約数ペア:

[(1, 390481994), (2, 195240997), (7, 55783142), (14, 27891571), (23, 16977478), (46, 8488739), (161, 2425354), (322, 1212677)]