19311439

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:367

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 4820081

約数列:

[1, 7, 17, 49, 97, 119, 239, 679, 833, 1649, 1673, 4063, 4753, 11543, 11711, 23183, 28441, 80801, 162281, 199087, 394111, 1135967, 2758777, 19311439]

約数ペア:

[(1, 19311439), (7, 2758777), (17, 1135967), (49, 394111), (97, 199087), (119, 162281), (239, 80801), (679, 28441), (833, 23183), (1649, 11711), (1673, 11543), (4063, 4753)]