16855215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:204

約数の個数: 48

約数和(自身を含む): 29953440

約数和(自身を除く): 13098225

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 109, 169, 183, 195, 305, 327, 507, 545, 793, 845, 915, 1417, 1635, 2379, 2535, 3965, 4251, 6649, 7085, 10309, 11895, 18421, 19947, 21255, 30927, 33245, 51545, 55263, 86437, 92105, 99735, 154635, 259311, 276315, 432185, 1123681, 1296555, 3371043, 5618405, 16855215]

約数ペア:

[(1, 16855215), (3, 5618405), (5, 3371043), (13, 1296555), (15, 1123681), (39, 432185), (61, 276315), (65, 259311), (109, 154635), (169, 99735), (183, 92105), (195, 86437), (305, 55263), (327, 51545), (507, 33245), (545, 30927), (793, 21255), (845, 19947), (915, 18421), (1417, 11895), (1635, 10309), (2379, 7085), (2535, 6649), (3965, 4251)]