21400208

素因数分解:

$2^4\times {\mathrm{37}}^2\times {\mathrm{977}}^1$

素因数の和:1059

約数の個数: 30

約数和(自身を含む): 42657426

約数和(自身を除く): 21257218

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 977, 1369, 1954, 2738, 3908, 5476, 7816, 10952, 15632, 21904, 36149, 72298, 144596, 289192, 578384, 1337513, 2675026, 5350052, 10700104, 21400208]

約数ペア:

[(1, 21400208), (2, 10700104), (4, 5350052), (8, 2675026), (16, 1337513), (37, 578384), (74, 289192), (148, 144596), (296, 72298), (592, 36149), (977, 21904), (1369, 15632), (1954, 10952), (2738, 7816), (3908, 5476)]