20864585

素因数分解:

$5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1801}}^1$

素因数の和:2144

約数の個数: 16

約数和(自身を含む): 28716672

約数和(自身を除く): 7852087

約数列:

[1, 5, 7, 35, 331, 1655, 1801, 2317, 9005, 11585, 12607, 63035, 596131, 2980655, 4172917, 20864585]

約数ペア:

[(1, 20864585), (5, 4172917), (7, 2980655), (35, 596131), (331, 63035), (1655, 12607), (1801, 11585), (2317, 9005)]