21818264

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1087}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 44325120

約数和(自身を除く): 22506856

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193, 386, 772, 1087, 1544, 2174, 2509, 4348, 5018, 8696, 10036, 14131, 20072, 28262, 56524, 113048, 209791, 419582, 839164, 1678328, 2727283, 5454566, 10909132, 21818264]

約数ペア:

[(1, 21818264), (2, 10909132), (4, 5454566), (8, 2727283), (13, 1678328), (26, 839164), (52, 419582), (104, 209791), (193, 113048), (386, 56524), (772, 28262), (1087, 20072), (1544, 14131), (2174, 10036), (2509, 8696), (4348, 5018)]