20872784

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{22111}}^1$

素因数の和:22178

約数の個数: 20

約数和(自身を含む): 41128320

約数和(自身を除く): 20255536

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 22111, 44222, 88444, 176888, 353776, 1304549, 2609098, 5218196, 10436392, 20872784]

約数ペア:

[(1, 20872784), (2, 10436392), (4, 5218196), (8, 2609098), (16, 1304549), (59, 353776), (118, 176888), (236, 88444), (472, 44222), (944, 22111)]