19666821

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{1381}}^1$

素因数の和:1532

約数の個数: 16

約数和(自身を含む): 27065088

約数和(自身を除く): 7398267

約数列:

[1, 3, 47, 101, 141, 303, 1381, 4143, 4747, 14241, 64907, 139481, 194721, 418443, 6555607, 19666821]

約数ペア:

[(1, 19666821), (3, 6555607), (47, 418443), (101, 194721), (141, 139481), (303, 64907), (1381, 14241), (4143, 4747)]