21259030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5639}}^1$

素因数の和:5688

約数の個数: 32

約数和(自身を含む): 42638400

約数和(自身を除く): 21379370

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5639, 11278, 28195, 56390, 73307, 146614, 163531, 327062, 366535, 733070, 817655, 1635310, 2125903, 4251806, 10629515, 21259030]

約数ペア:

[(1, 21259030), (2, 10629515), (5, 4251806), (10, 2125903), (13, 1635310), (26, 817655), (29, 733070), (58, 366535), (65, 327062), (130, 163531), (145, 146614), (290, 73307), (377, 56390), (754, 28195), (1885, 11278), (3770, 5639)]