21133137040

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1163719}}^1$

素因数の和:1163959

約数の個数: 40

約数和(自身を含む): 49351037760

約数和(自身を除く): 28217900720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4540, 9080, 18160, 1163719, 2327438, 4654876, 5818595, 9309752, 11637190, 18619504, 23274380, 46548760, 93097520, 264164213, 528328426, 1056656852, 1320821065, 2113313704, 2641642130, 4226627408, 5283284260, 10566568520, 21133137040]

約数ペア:

[(1, 21133137040), (2, 10566568520), (4, 5283284260), (5, 4226627408), (8, 2641642130), (10, 2113313704), (16, 1320821065), (20, 1056656852), (40, 528328426), (80, 264164213), (227, 93097520), (454, 46548760), (908, 23274380), (1135, 18619504), (1816, 11637190), (2270, 9309752), (3632, 5818595), (4540, 4654876), (9080, 2327438), (18160, 1163719)]