12978765

素因数分解:

$3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{757}}^1$

素因数の和:898

約数の個数: 32

約数和(自身を含む): 23285760

約数和(自身を除く): 10306995

約数列:

[1, 3, 5, 9, 15, 27, 45, 127, 135, 381, 635, 757, 1143, 1905, 2271, 3429, 3785, 5715, 6813, 11355, 17145, 20439, 34065, 96139, 102195, 288417, 480695, 865251, 1442085, 2595753, 4326255, 12978765]

約数ペア:

[(1, 12978765), (3, 4326255), (5, 2595753), (9, 1442085), (15, 865251), (27, 480695), (45, 288417), (127, 102195), (135, 96139), (381, 34065), (635, 20439), (757, 17145), (1143, 11355), (1905, 6813), (2271, 5715), (3429, 3785)]