31878399

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 49960960

約数和(自身を除く): 18082561

約数列:

[1, 3, 7, 21, 67, 139, 163, 201, 417, 469, 489, 973, 1141, 1407, 2919, 3423, 9313, 10921, 22657, 27939, 32763, 65191, 67971, 76447, 158599, 195573, 229341, 475797, 1518019, 4554057, 10626133, 31878399]

約数ペア:

[(1, 31878399), (3, 10626133), (7, 4554057), (21, 1518019), (67, 475797), (139, 229341), (163, 195573), (201, 158599), (417, 76447), (469, 67971), (489, 65191), (973, 32763), (1141, 27939), (1407, 22657), (2919, 10921), (3423, 9313)]