20181682

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1997}}^1$

素因数の和:2193

約数の個数: 16

約数和(自身を含む): 31456512

約数和(自身を除く): 11274830

約数列:

[1, 2, 31, 62, 163, 326, 1997, 3994, 5053, 10106, 61907, 123814, 325511, 651022, 10090841, 20181682]

約数ペア:

[(1, 20181682), (2, 10090841), (31, 651022), (62, 325511), (163, 123814), (326, 61907), (1997, 10106), (3994, 5053)]