1981917

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 3308864

約数和(自身を除く): 1326947

約数列:

[1, 3, 7, 9, 21, 63, 163, 193, 489, 579, 1141, 1351, 1467, 1737, 3423, 4053, 10269, 12159, 31459, 94377, 220213, 283131, 660639, 1981917]

約数ペア:

[(1, 1981917), (3, 660639), (7, 283131), (9, 220213), (21, 94377), (63, 31459), (163, 12159), (193, 10269), (489, 4053), (579, 3423), (1141, 1737), (1351, 1467)]