20215363

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{661}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 24594624

約数和(自身を除く): 4379261

約数列:

[1, 7, 17, 119, 257, 661, 1799, 4369, 4627, 11237, 30583, 78659, 169877, 1189139, 2887909, 20215363]

約数ペア:

[(1, 20215363), (7, 2887909), (17, 1189139), (119, 169877), (257, 78659), (661, 30583), (1799, 11237), (4369, 4627)]