19561842

素因数分解:

$2^1\times 3^2\times {\mathrm{1086769}}^1$

素因数の和:1086777

約数の個数: 12

約数和(自身を含む): 42384030

約数和(自身を除く): 22822188

約数列:

[1, 2, 3, 6, 9, 18, 1086769, 2173538, 3260307, 6520614, 9780921, 19561842]

約数ペア:

[(1, 19561842), (2, 9780921), (3, 6520614), (6, 3260307), (9, 2173538), (18, 1086769)]