19853631

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2087}}^1$

素因数の和:2251

約数の個数: 24

約数和(自身を含む): 33007104

約数和(自身を除く): 13153473

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2087, 3171, 6261, 9513, 14609, 18783, 43827, 131481, 315137, 945411, 2205959, 2836233, 6617877, 19853631]

約数ペア:

[(1, 19853631), (3, 6617877), (7, 2836233), (9, 2205959), (21, 945411), (63, 315137), (151, 131481), (453, 43827), (1057, 18783), (1359, 14609), (2087, 9513), (3171, 6261)]