18193917

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^2\times {\mathrm{193}}^1$

素因数の和:337

約数の個数: 24

約数和(自身を含む): 28289856

約数和(自身を除く): 10095939

約数列:

[1, 3, 7, 21, 67, 193, 201, 469, 579, 1351, 1407, 4053, 4489, 12931, 13467, 31423, 38793, 90517, 94269, 271551, 866377, 2599131, 6064639, 18193917]

約数ペア:

[(1, 18193917), (3, 6064639), (7, 2599131), (21, 866377), (67, 271551), (193, 94269), (201, 90517), (469, 38793), (579, 31423), (1351, 13467), (1407, 12931), (4053, 4489)]