20479623

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 29111808

約数和(自身を除く): 8632185

約数列:

[1, 3, 31, 41, 93, 123, 131, 393, 1271, 1681, 3813, 4061, 5043, 5371, 12183, 16113, 52111, 156333, 166501, 220211, 499503, 660633, 6826541, 20479623]

約数ペア:

[(1, 20479623), (3, 6826541), (31, 660633), (41, 499503), (93, 220211), (123, 166501), (131, 156333), (393, 52111), (1271, 16113), (1681, 12183), (3813, 5371), (4061, 5043)]