18529965

素因数分解:

$3^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 33860736

約数和(自身を除く): 15330771

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 151, 243, 303, 405, 453, 505, 755, 909, 1215, 1359, 1515, 2265, 2727, 4077, 4545, 6795, 8181, 12231, 13635, 15251, 20385, 24543, 36693, 40905, 45753, 61155, 76255, 122715, 137259, 183465, 228765, 411777, 686295, 1235331, 2058885, 3705993, 6176655, 18529965]

約数ペア:

[(1, 18529965), (3, 6176655), (5, 3705993), (9, 2058885), (15, 1235331), (27, 686295), (45, 411777), (81, 228765), (101, 183465), (135, 137259), (151, 122715), (243, 76255), (303, 61155), (405, 45753), (453, 40905), (505, 36693), (755, 24543), (909, 20385), (1215, 15251), (1359, 13635), (1515, 12231), (2265, 8181), (2727, 6795), (4077, 4545)]