20813118

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{80671}}^1$

素因数の和:80719

約数の個数: 16

約数和(自身を含む): 42594816

約数和(自身を除く): 21781698

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 80671, 161342, 242013, 484026, 3468853, 6937706, 10406559, 20813118]

約数ペア:

[(1, 20813118), (2, 10406559), (3, 6937706), (6, 3468853), (43, 484026), (86, 242013), (129, 161342), (258, 80671)]