21240566

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{1153}}^1$

素因数の和:1367

約数の個数: 16

約数和(自身を含む): 32625888

約数和(自身を除く): 11385322

約数列:

[1, 2, 61, 122, 151, 302, 1153, 2306, 9211, 18422, 70333, 140666, 174103, 348206, 10620283, 21240566]

約数ペア:

[(1, 21240566), (2, 10620283), (61, 348206), (122, 174103), (151, 140666), (302, 70333), (1153, 18422), (2306, 9211)]