20123961

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 32081280

約数和(自身を除く): 11957319

約数列:

[1, 3, 11, 13, 33, 39, 61, 143, 183, 429, 671, 769, 793, 2013, 2307, 2379, 8459, 8723, 9997, 25377, 26169, 29991, 46909, 109967, 140727, 329901, 515999, 609817, 1547997, 1829451, 6707987, 20123961]

約数ペア:

[(1, 20123961), (3, 6707987), (11, 1829451), (13, 1547997), (33, 609817), (39, 515999), (61, 329901), (143, 140727), (183, 109967), (429, 46909), (671, 29991), (769, 26169), (793, 25377), (2013, 9997), (2307, 8723), (2379, 8459)]