20464558

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{4111}}^1$

素因数の和:4263

約数の個数: 16

約数和(自身を含む): 32567040

約数和(自身を除く): 12102482

約数列:

[1, 2, 19, 38, 131, 262, 2489, 4111, 4978, 8222, 78109, 156218, 538541, 1077082, 10232279, 20464558]

約数ペア:

[(1, 20464558), (2, 10232279), (19, 1077082), (38, 538541), (131, 156218), (262, 78109), (2489, 8222), (4111, 4978)]