20208251

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:458

約数の個数: 16

約数和(自身を含む): 23616000

約数和(自身を除く): 3407749

約数列:

[1, 7, 89, 163, 199, 623, 1141, 1393, 14507, 17711, 32437, 101549, 123977, 227059, 2886893, 20208251]

約数ペア:

[(1, 20208251), (7, 2886893), (89, 227059), (163, 123977), (199, 101549), (623, 32437), (1141, 17711), (1393, 14507)]