21241441

素因数分解:

${\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 24478080

約数和(自身を除く): 3236639

約数列:

[1, 13, 37, 43, 79, 169, 481, 559, 1027, 1591, 2923, 3397, 6253, 7267, 13351, 20683, 37999, 44161, 125689, 268879, 493987, 574093, 1633957, 21241441]

約数ペア:

[(1, 21241441), (13, 1633957), (37, 574093), (43, 493987), (79, 268879), (169, 125689), (481, 44161), (559, 37999), (1027, 20683), (1591, 13351), (2923, 7267), (3397, 6253)]