20726558

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1\times {\mathrm{331}}^1$

素因数の和:703

約数の個数: 16

約数和(自身を含む): 31553280

約数和(自身を除く): 10826722

約数列:

[1, 2, 131, 239, 262, 331, 478, 662, 31309, 43361, 62618, 79109, 86722, 158218, 10363279, 20726558]

約数ペア:

[(1, 20726558), (2, 10363279), (131, 158218), (239, 86722), (262, 79109), (331, 62618), (478, 43361), (662, 31309)]