21519496

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{72701}}^1$

素因数の和:72744

約数の個数: 16

約数和(自身を含む): 41440140

約数和(自身を除く): 19920644

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 72701, 145402, 290804, 581608, 2689937, 5379874, 10759748, 21519496]

約数ペア:

[(1, 21519496), (2, 10759748), (4, 5379874), (8, 2689937), (37, 581608), (74, 290804), (148, 145402), (296, 72701)]