19929915

素因数分解:

$3^3\times 5^1\times {\mathrm{147629}}^1$

素因数の和:147643

約数の個数: 16

約数和(自身を含む): 35431200

約数和(自身を除く): 15501285

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 147629, 442887, 738145, 1328661, 2214435, 3985983, 6643305, 19929915]

約数ペア:

[(1, 19929915), (3, 6643305), (5, 3985983), (9, 2214435), (15, 1328661), (27, 738145), (45, 442887), (135, 147629)]