21438978

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2069}}^1$

素因数の和:2242

約数の個数: 32

約数和(自身を含む): 47096640

約数和(自身を除く): 25657662

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 157, 314, 471, 942, 1727, 2069, 3454, 4138, 5181, 6207, 10362, 12414, 22759, 45518, 68277, 136554, 324833, 649666, 974499, 1948998, 3573163, 7146326, 10719489, 21438978]

約数ペア:

[(1, 21438978), (2, 10719489), (3, 7146326), (6, 3573163), (11, 1948998), (22, 974499), (33, 649666), (66, 324833), (157, 136554), (314, 68277), (471, 45518), (942, 22759), (1727, 12414), (2069, 10362), (3454, 6207), (4138, 5181)]