21240890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6229}}^1$

素因数の和:6278

約数の個数: 32

約数和(自身を含む): 43061760

約数和(自身を除く): 21820870

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 6229, 12458, 31145, 62290, 68519, 137038, 193099, 342595, 386198, 685190, 965495, 1930990, 2124089, 4248178, 10620445, 21240890]

約数ペア:

[(1, 21240890), (2, 10620445), (5, 4248178), (10, 2124089), (11, 1930990), (22, 965495), (31, 685190), (55, 386198), (62, 342595), (110, 193099), (155, 137038), (310, 68519), (341, 62290), (682, 31145), (1705, 12458), (3410, 6229)]