20862485

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{5009}}^1$

素因数の和:5045

約数の個数: 24

約数和(自身を含む): 30841560

約数和(自身を除く): 9979075

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 5009, 25045, 35063, 85153, 175315, 245441, 425765, 596071, 1227205, 2980355, 4172497, 20862485]

約数ペア:

[(1, 20862485), (5, 4172497), (7, 2980355), (17, 1227205), (35, 596071), (49, 425765), (85, 245441), (119, 175315), (245, 85153), (595, 35063), (833, 25045), (4165, 5009)]