21362209

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{719}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 24295680

約数和(自身を除く): 2933471

約数列:

[1, 11, 37, 73, 407, 719, 803, 2701, 7909, 26603, 29711, 52487, 292633, 577357, 1942019, 21362209]

約数ペア:

[(1, 21362209), (11, 1942019), (37, 577357), (73, 292633), (407, 52487), (719, 29711), (803, 26603), (2701, 7909)]