261089241

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{6353}}^1$

素因数の和:6485

約数の個数: 32

約数和(自身を含む): 422922240

約数和(自身を除く): 161832999

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 721, 1957, 2163, 5871, 6353, 13699, 19059, 41097, 44471, 120707, 133413, 362121, 654359, 844949, 1963077, 2534847, 4580513, 12432821, 13741539, 37298463, 87029747, 261089241]

約数ペア:

[(1, 261089241), (3, 87029747), (7, 37298463), (19, 13741539), (21, 12432821), (57, 4580513), (103, 2534847), (133, 1963077), (309, 844949), (399, 654359), (721, 362121), (1957, 133413), (2163, 120707), (5871, 44471), (6353, 41097), (13699, 19059)]