1427391

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 2387840

約数和(自身を除く): 960449

約数列:

[1, 3, 7, 9, 21, 63, 139, 163, 417, 489, 973, 1141, 1251, 1467, 2919, 3423, 8757, 10269, 22657, 67971, 158599, 203913, 475797, 1427391]

約数ペア:

[(1, 1427391), (3, 475797), (7, 203913), (9, 158599), (21, 67971), (63, 22657), (139, 10269), (163, 8757), (417, 3423), (489, 2919), (973, 1467), (1141, 1251)]