21323555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{461}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 28972944

約数和(自身を除く): 7649389

約数列:

[1, 5, 11, 29, 55, 145, 319, 461, 841, 1595, 2305, 4205, 5071, 9251, 13369, 25355, 46255, 66845, 147059, 387701, 735295, 1938505, 4264711, 21323555]

約数ペア:

[(1, 21323555), (5, 4264711), (11, 1938505), (29, 735295), (55, 387701), (145, 147059), (319, 66845), (461, 46255), (841, 25355), (1595, 13369), (2305, 9251), (4205, 5071)]