31281615

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:528

約数の個数: 48

約数和(自身を含む): 58114368

約数和(自身を除く): 26832753

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 103, 153, 255, 309, 397, 515, 765, 927, 1191, 1545, 1751, 1985, 3573, 4635, 5253, 5955, 6749, 8755, 15759, 17865, 20247, 26265, 33745, 40891, 60741, 78795, 101235, 122673, 204455, 303705, 368019, 613365, 695147, 1840095, 2085441, 3475735, 6256323, 10427205, 31281615]

約数ペア:

[(1, 31281615), (3, 10427205), (5, 6256323), (9, 3475735), (15, 2085441), (17, 1840095), (45, 695147), (51, 613365), (85, 368019), (103, 303705), (153, 204455), (255, 122673), (309, 101235), (397, 78795), (515, 60741), (765, 40891), (927, 33745), (1191, 26265), (1545, 20247), (1751, 17865), (1985, 15759), (3573, 8755), (4635, 6749), (5253, 5955)]