19992986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{45233}}^1$

素因数の和:45265

約数の個数: 16

約数和(自身を含む): 34196904

約数和(自身を除く): 14203918

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 45233, 90466, 588029, 768961, 1176058, 1537922, 9996493, 19992986]

約数ペア:

[(1, 19992986), (2, 9996493), (13, 1537922), (17, 1176058), (26, 768961), (34, 588029), (221, 90466), (442, 45233)]