20829315

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 15297405

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 223, 479, 669, 1115, 1437, 2395, 2899, 3345, 6227, 7185, 8697, 14495, 18681, 31135, 43485, 93405, 106817, 320451, 534085, 1388621, 1602255, 4165863, 6943105, 20829315]

約数ペア:

[(1, 20829315), (3, 6943105), (5, 4165863), (13, 1602255), (15, 1388621), (39, 534085), (65, 320451), (195, 106817), (223, 93405), (479, 43485), (669, 31135), (1115, 18681), (1437, 14495), (2395, 8697), (2899, 7185), (3345, 6227)]