20571804

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{51949}}^1$

素因数の和:51970

約数の個数: 36

約数和(自身を含む): 56729400

約数和(自身を除く): 36157596

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 51949, 103898, 155847, 207796, 311694, 467541, 571439, 623388, 935082, 1142878, 1714317, 1870164, 2285756, 3428634, 5142951, 6857268, 10285902, 20571804]

約数ペア:

[(1, 20571804), (2, 10285902), (3, 6857268), (4, 5142951), (6, 3428634), (9, 2285756), (11, 1870164), (12, 1714317), (18, 1142878), (22, 935082), (33, 623388), (36, 571439), (44, 467541), (66, 311694), (99, 207796), (132, 155847), (198, 103898), (396, 51949)]