20649426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{491653}}^1$

素因数の和:491665

約数の個数: 16

約数和(自身を含む): 47198784

約数和(自身を除く): 26549358

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 491653, 983306, 1474959, 2949918, 3441571, 6883142, 10324713, 20649426]

約数ペア:

[(1, 20649426), (2, 10324713), (3, 6883142), (6, 3441571), (7, 2949918), (14, 1474959), (21, 983306), (42, 491653)]