20541195

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:841

約数の個数: 40

約数和(自身を含む): 37420944

約数和(自身を除く): 16879749

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 757, 1005, 1809, 2271, 3015, 3785, 5427, 6813, 9045, 11355, 20439, 27135, 34065, 50719, 61317, 102195, 152157, 253595, 306585, 456471, 760785, 1369413, 2282355, 4108239, 6847065, 20541195]

約数ペア:

[(1, 20541195), (3, 6847065), (5, 4108239), (9, 2282355), (15, 1369413), (27, 760785), (45, 456471), (67, 306585), (81, 253595), (135, 152157), (201, 102195), (335, 61317), (405, 50719), (603, 34065), (757, 27135), (1005, 20439), (1809, 11355), (2271, 9045), (3015, 6813), (3785, 5427)]