13121865

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 24312960

約数和(自身を除く): 11191095

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 71, 111, 135, 185, 213, 333, 355, 555, 639, 999, 1065, 1369, 1665, 1917, 2627, 3195, 4107, 4995, 6845, 7881, 9585, 12321, 13135, 20535, 23643, 36963, 39405, 61605, 70929, 97199, 118215, 184815, 291597, 354645, 485995, 874791, 1457985, 2624373, 4373955, 13121865]

約数ペア:

[(1, 13121865), (3, 4373955), (5, 2624373), (9, 1457985), (15, 874791), (27, 485995), (37, 354645), (45, 291597), (71, 184815), (111, 118215), (135, 97199), (185, 70929), (213, 61605), (333, 39405), (355, 36963), (555, 23643), (639, 20535), (999, 13135), (1065, 12321), (1369, 9585), (1665, 7881), (1917, 6845), (2627, 4995), (3195, 4107)]