399966978

素因数分解:

$2^1\times 3^1\times {\mathrm{239}}^1\times {\mathrm{278917}}^1$

素因数の和:279161

約数の個数: 16

約数和(自身を含む): 803283840

約数和(自身を除く): 403316862

約数列:

[1, 2, 3, 6, 239, 478, 717, 1434, 278917, 557834, 836751, 1673502, 66661163, 133322326, 199983489, 399966978]

約数ペア:

[(1, 399966978), (2, 199983489), (3, 133322326), (6, 66661163), (239, 1673502), (478, 836751), (717, 557834), (1434, 278917)]