20455605

素因数分解:

$3^3\times 5^1\times {\mathrm{151523}}^1$

素因数の和:151537

約数の個数: 16

約数和(自身を含む): 36365760

約数和(自身を除く): 15910155

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151523, 454569, 757615, 1363707, 2272845, 4091121, 6818535, 20455605]

約数ペア:

[(1, 20455605), (3, 6818535), (5, 4091121), (9, 2272845), (15, 1363707), (27, 757615), (45, 454569), (135, 151523)]