2181856825

素因数分解:

$5^2\times {\mathrm{127}}^1\times {\mathrm{521}}^1\times {\mathrm{1319}}^1$

素因数の和:1977

約数の個数: 24

約数和(自身を含む): 2734110720

約数和(自身を除く): 552253895

約数列:

[1, 5, 25, 127, 521, 635, 1319, 2605, 3175, 6595, 13025, 32975, 66167, 167513, 330835, 687199, 837565, 1654175, 3435995, 4187825, 17179975, 87274273, 436371365, 2181856825]

約数ペア:

[(1, 2181856825), (5, 436371365), (25, 87274273), (127, 17179975), (521, 4187825), (635, 3435995), (1319, 1654175), (2605, 837565), (3175, 687199), (6595, 330835), (13025, 167513), (32975, 66167)]