397964

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 812448

約数和(自身を除く): 414484

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 233, 244, 427, 466, 854, 932, 1631, 1708, 3262, 6524, 14213, 28426, 56852, 99491, 198982, 397964]

約数ペア:

[(1, 397964), (2, 198982), (4, 99491), (7, 56852), (14, 28426), (28, 14213), (61, 6524), (122, 3262), (233, 1708), (244, 1631), (427, 932), (466, 854)]