13399925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6961}}^1$

素因数の和:6989

約数の個数: 24

約数和(自身を含む): 20718912

約数和(自身を除く): 7318987

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 6961, 34805, 48727, 76571, 174025, 243635, 382855, 535997, 1218175, 1914275, 2679985, 13399925]

約数ペア:

[(1, 13399925), (5, 2679985), (7, 1914275), (11, 1218175), (25, 535997), (35, 382855), (55, 243635), (77, 174025), (175, 76571), (275, 48727), (385, 34805), (1925, 6961)]