20988858

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1951}}^1$

素因数の和:2130

約数の個数: 32

約数和(自身を含む): 46098432

約数和(自身を除く): 25109574

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 163, 326, 489, 978, 1793, 1951, 3586, 3902, 5379, 5853, 10758, 11706, 21461, 42922, 64383, 128766, 318013, 636026, 954039, 1908078, 3498143, 6996286, 10494429, 20988858]

約数ペア:

[(1, 20988858), (2, 10494429), (3, 6996286), (6, 3498143), (11, 1908078), (22, 954039), (33, 636026), (66, 318013), (163, 128766), (326, 64383), (489, 42922), (978, 21461), (1793, 11706), (1951, 10758), (3586, 5853), (3902, 5379)]