18870165

素因数分解:

$3^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:221

約数の個数: 56

約数和(自身を含む): 35255808

約数和(自身を除く): 16385643

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 167, 243, 279, 405, 465, 501, 729, 835, 837, 1215, 1395, 1503, 2505, 2511, 3645, 4185, 4509, 5177, 7515, 7533, 12555, 13527, 15531, 22545, 22599, 25885, 37665, 40581, 46593, 67635, 77655, 112995, 121743, 139779, 202905, 232965, 419337, 608715, 698895, 1258011, 2096685, 3774033, 6290055, 18870165]

約数ペア:

[(1, 18870165), (3, 6290055), (5, 3774033), (9, 2096685), (15, 1258011), (27, 698895), (31, 608715), (45, 419337), (81, 232965), (93, 202905), (135, 139779), (155, 121743), (167, 112995), (243, 77655), (279, 67635), (405, 46593), (465, 40581), (501, 37665), (729, 25885), (835, 22599), (837, 22545), (1215, 15531), (1395, 13527), (1503, 12555), (2505, 7533), (2511, 7515), (3645, 5177), (4185, 4509)]