30311281

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 41223168

約数和(自身を除く): 10911887

約数列:

[1, 7, 11, 13, 77, 91, 107, 143, 283, 749, 1001, 1177, 1391, 1981, 3113, 3679, 8239, 9737, 15301, 21791, 25753, 30281, 40469, 107107, 211967, 283283, 333091, 393653, 2331637, 2755571, 4330183, 30311281]

約数ペア:

[(1, 30311281), (7, 4330183), (11, 2755571), (13, 2331637), (77, 393653), (91, 333091), (107, 283283), (143, 211967), (283, 107107), (749, 40469), (1001, 30281), (1177, 25753), (1391, 21791), (1981, 15301), (3113, 9737), (3679, 8239)]