18663255

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 35476896

約数和(自身を除く): 16813641

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 61, 65, 117, 183, 195, 305, 523, 549, 585, 793, 915, 1569, 2379, 2615, 2745, 3965, 4707, 6799, 7137, 7845, 11895, 20397, 23535, 31903, 33995, 35685, 61191, 95709, 101985, 159515, 287127, 305955, 414739, 478545, 1244217, 1435635, 2073695, 3732651, 6221085, 18663255]

約数ペア:

[(1, 18663255), (3, 6221085), (5, 3732651), (9, 2073695), (13, 1435635), (15, 1244217), (39, 478545), (45, 414739), (61, 305955), (65, 287127), (117, 159515), (183, 101985), (195, 95709), (305, 61191), (523, 35685), (549, 33995), (585, 31903), (793, 23535), (915, 20397), (1569, 11895), (2379, 7845), (2615, 7137), (2745, 6799), (3965, 4707)]