17961745

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4397}}^1$

素因数の和:4464

約数の個数: 16

約数和(自身を含む): 23221440

約数和(自身を除く): 5259695

約数列:

[1, 5, 19, 43, 95, 215, 817, 4085, 4397, 21985, 83543, 189071, 417715, 945355, 3592349, 17961745]

約数ペア:

[(1, 17961745), (5, 3592349), (19, 945355), (43, 417715), (95, 189071), (215, 83543), (817, 21985), (4085, 4397)]