18166239

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{541}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 33144384

約数和(自身を除く): 14978145

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 63, 91, 117, 123, 273, 287, 369, 533, 541, 819, 861, 1599, 1623, 2583, 3731, 3787, 4797, 4869, 7033, 11193, 11361, 21099, 22181, 33579, 34083, 49231, 63297, 66543, 147693, 155267, 199629, 288353, 443079, 465801, 865059, 1397403, 2018471, 2595177, 6055413, 18166239]

約数ペア:

[(1, 18166239), (3, 6055413), (7, 2595177), (9, 2018471), (13, 1397403), (21, 865059), (39, 465801), (41, 443079), (63, 288353), (91, 199629), (117, 155267), (123, 147693), (273, 66543), (287, 63297), (369, 49231), (533, 34083), (541, 33579), (819, 22181), (861, 21099), (1599, 11361), (1623, 11193), (2583, 7033), (3731, 4869), (3787, 4797)]