18500816

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{21817}}^1$

素因数の和:21878

約数の個数: 20

約数和(自身を含む): 36523332

約数和(自身を除く): 18022516

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 21817, 43634, 87268, 174536, 349072, 1156301, 2312602, 4625204, 9250408, 18500816]

約数ペア:

[(1, 18500816), (2, 9250408), (4, 4625204), (8, 2312602), (16, 1156301), (53, 349072), (106, 174536), (212, 87268), (424, 43634), (848, 21817)]