31221025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{10321}}^1$

素因数の和:10353

約数の個数: 18

約数和(自身を含む): 42557606

約数和(自身を除く): 11336581

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 10321, 51605, 113531, 258025, 567655, 1248841, 2838275, 6244205, 31221025]

約数ペア:

[(1, 31221025), (5, 6244205), (11, 2838275), (25, 1248841), (55, 567655), (121, 258025), (275, 113531), (605, 51605), (3025, 10321)]