397399681

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{1069}}^1\times {\mathrm{2309}}^1$

素因数の和:3408

約数の個数: 16

約数和(自身を含む): 474566400

約数和(自身を除く): 77166719

約数列:

[1, 7, 23, 161, 1069, 2309, 7483, 16163, 24587, 53107, 172109, 371749, 2468321, 17278247, 56771383, 397399681]

約数ペア:

[(1, 397399681), (7, 56771383), (23, 17278247), (161, 2468321), (1069, 371749), (2309, 172109), (7483, 53107), (16163, 24587)]