20923921

素因数分解:

${\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:576

約数の個数: 12

約数和(自身を含む): 22288500

約数和(自身を除く): 1364579

約数列:

[1, 19, 149, 361, 389, 2831, 7391, 53789, 57961, 140429, 1101259, 20923921]

約数ペア:

[(1, 20923921), (19, 1101259), (149, 140429), (361, 57961), (389, 53789), (2831, 7391)]