21427789

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{733}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 23675904

約数和(自身を除く): 2248115

約数列:

[1, 23, 31, 41, 713, 733, 943, 1271, 16859, 22723, 29233, 30053, 522629, 691219, 931643, 21427789]

約数ペア:

[(1, 21427789), (23, 931643), (31, 691219), (41, 522629), (713, 30053), (733, 29233), (943, 22723), (1271, 16859)]