399910714

素因数分解:

$2^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{181943}}^1$

素因数の和:182109

約数の個数: 16

約数和(自身を含む): 689931648

約数和(自身を除く): 290020934

約数列:

[1, 2, 7, 14, 157, 314, 1099, 2198, 181943, 363886, 1273601, 2547202, 28565051, 57130102, 199955357, 399910714]

約数ペア:

[(1, 399910714), (2, 199955357), (7, 57130102), (14, 28565051), (157, 2547202), (314, 1273601), (1099, 363886), (2198, 181943)]