20747218

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:753

約数の個数: 16

約数和(自身を含む): 31628160

約数和(自身を除く): 10880942

約数列:

[1, 2, 101, 202, 271, 379, 542, 758, 27371, 38279, 54742, 76558, 102709, 205418, 10373609, 20747218]

約数ペア:

[(1, 20747218), (2, 10373609), (101, 205418), (202, 102709), (271, 76558), (379, 54742), (542, 38279), (758, 27371)]