21321292

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{1097}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 38552976

約数和(自身を除く): 17231684

約数列:

[1, 2, 4, 43, 86, 113, 172, 226, 452, 1097, 2194, 4388, 4859, 9718, 19436, 47171, 94342, 123961, 188684, 247922, 495844, 5330323, 10660646, 21321292]

約数ペア:

[(1, 21321292), (2, 10660646), (4, 5330323), (43, 495844), (86, 247922), (113, 188684), (172, 123961), (226, 94342), (452, 47171), (1097, 19436), (2194, 9718), (4388, 4859)]