31389795

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1481}}^1$

素因数の和:1652

約数の個数: 32

約数和(自身を含む): 56197440

約数和(自身を除く): 24807645

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 1481, 2355, 4239, 4443, 7065, 7405, 13329, 21195, 22215, 39987, 66645, 199935, 232517, 697551, 1162585, 2092653, 3487755, 6277959, 10463265, 31389795]

約数ペア:

[(1, 31389795), (3, 10463265), (5, 6277959), (9, 3487755), (15, 2092653), (27, 1162585), (45, 697551), (135, 232517), (157, 199935), (471, 66645), (785, 39987), (1413, 22215), (1481, 21195), (2355, 13329), (4239, 7405), (4443, 7065)]