15221690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1949}}^1$

素因数の和:2038

約数の個数: 32

約数和(自身を含む): 30326400

約数和(自身を除く): 15104710

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 1949, 3898, 3905, 7810, 9745, 19490, 21439, 42878, 107195, 138379, 214390, 276758, 691895, 1383790, 1522169, 3044338, 7610845, 15221690]

約数ペア:

[(1, 15221690), (2, 7610845), (5, 3044338), (10, 1522169), (11, 1383790), (22, 691895), (55, 276758), (71, 214390), (110, 138379), (142, 107195), (355, 42878), (710, 21439), (781, 19490), (1562, 9745), (1949, 7810), (3898, 3905)]