20928501

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1181}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 33190560

約数和(自身を除く): 12262059

約数列:

[1, 3, 9, 11, 33, 99, 179, 537, 1181, 1611, 1969, 3543, 5907, 10629, 12991, 17721, 38973, 116919, 211399, 634197, 1902591, 2325389, 6976167, 20928501]

約数ペア:

[(1, 20928501), (3, 6976167), (9, 2325389), (11, 1902591), (33, 634197), (99, 211399), (179, 116919), (537, 38973), (1181, 17721), (1611, 12991), (1969, 10629), (3543, 5907)]