21718075

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 28243728

約数和(自身を除く): 6525653

約数列:

[1, 5, 25, 37, 53, 185, 265, 443, 925, 1325, 1961, 2215, 9805, 11075, 16391, 23479, 49025, 81955, 117395, 409775, 586975, 868723, 4343615, 21718075]

約数ペア:

[(1, 21718075), (5, 4343615), (25, 868723), (37, 586975), (53, 409775), (185, 117395), (265, 81955), (443, 49025), (925, 23479), (1325, 16391), (1961, 11075), (2215, 9805)]