20315824

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21521}}^1$

素因数の和:21588

約数の個数: 20

約数和(自身を含む): 40030920

約数和(自身を除く): 19715096

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21521, 43042, 86084, 172168, 344336, 1269739, 2539478, 5078956, 10157912, 20315824]

約数ペア:

[(1, 20315824), (2, 10157912), (4, 5078956), (8, 2539478), (16, 1269739), (59, 344336), (118, 172168), (236, 86084), (472, 43042), (944, 21521)]