21223499

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 24161280

約数和(自身を除く): 2937781

約数列:

[1, 11, 31, 109, 341, 571, 1199, 3379, 6281, 17701, 37169, 62239, 194711, 684629, 1929409, 21223499]

約数ペア:

[(1, 21223499), (11, 1929409), (31, 684629), (109, 194711), (341, 62239), (571, 37169), (1199, 17701), (3379, 6281)]