21622779

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4079}}^1$

素因数の和:4135

約数の個数: 24

約数和(自身を含む): 33945600

約数和(自身を除く): 12322821

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 4079, 5301, 12237, 36711, 77501, 126449, 232503, 379347, 697509, 1138041, 2402531, 7207593, 21622779]

約数ペア:

[(1, 21622779), (3, 7207593), (9, 2402531), (19, 1138041), (31, 697509), (57, 379347), (93, 232503), (171, 126449), (279, 77501), (589, 36711), (1767, 12237), (4079, 5301)]