19616445

素因数分解:

$3^3\times 5^1\times {\mathrm{145307}}^1$

素因数の和:145321

約数の個数: 16

約数和(自身を含む): 34873920

約数和(自身を除く): 15257475

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 145307, 435921, 726535, 1307763, 2179605, 3923289, 6538815, 19616445]

約数ペア:

[(1, 19616445), (3, 6538815), (5, 3923289), (9, 2179605), (15, 1307763), (27, 726535), (45, 435921), (135, 145307)]