20212838

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{3853}}^1$

素因数の和:3959

約数の個数: 16

約数和(自身を含む): 31541136

約数和(自身を除く): 11328298

約数列:

[1, 2, 43, 61, 86, 122, 2623, 3853, 5246, 7706, 165679, 235033, 331358, 470066, 10106419, 20212838]

約数ペア:

[(1, 20212838), (2, 10106419), (43, 470066), (61, 331358), (86, 235033), (122, 165679), (2623, 7706), (3853, 5246)]