21052757

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{947}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 24026112

約数和(自身を除く): 2973355

約数列:

[1, 11, 43, 47, 473, 517, 947, 2021, 10417, 22231, 40721, 44509, 447931, 489599, 1913887, 21052757]

約数ペア:

[(1, 21052757), (11, 1913887), (43, 489599), (47, 447931), (473, 44509), (517, 40721), (947, 22231), (2021, 10417)]