20018145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{190649}}^1$

素因数の和:190664

約数の個数: 16

約数和(自身を含む): 36604800

約数和(自身を除く): 16586655

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 190649, 571947, 953245, 1334543, 2859735, 4003629, 6672715, 20018145]

約数ペア:

[(1, 20018145), (3, 6672715), (5, 4003629), (7, 2859735), (15, 1334543), (21, 953245), (35, 571947), (105, 190649)]