20921486

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{1699}}^1$

素因数の和:1879

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 11392114

約数列:

[1, 2, 47, 94, 131, 262, 1699, 3398, 6157, 12314, 79853, 159706, 222569, 445138, 10460743, 20921486]

約数ペア:

[(1, 20921486), (2, 10460743), (47, 445138), (94, 222569), (131, 159706), (262, 79853), (1699, 12314), (3398, 6157)]