51717328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{248641}}^1$

素因数の和:248662

約数の個数: 20

約数和(自身を含む): 107910628

約数和(自身を除く): 56193300

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 248641, 497282, 994564, 1989128, 3232333, 3978256, 6464666, 12929332, 25858664, 51717328]

約数ペア:

[(1, 51717328), (2, 25858664), (4, 12929332), (8, 6464666), (13, 3978256), (16, 3232333), (26, 1989128), (52, 994564), (104, 497282), (208, 248641)]