31780413

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10733}}^1$

素因数の和:10793

約数の個数: 24

約数和(自身を含む): 53584128

約数和(自身を除く): 21803715

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 10733, 32199, 75131, 96597, 225393, 504451, 676179, 1513353, 3531157, 4540059, 10593471, 31780413]

約数ペア:

[(1, 31780413), (3, 10593471), (7, 4540059), (9, 3531157), (21, 1513353), (47, 676179), (63, 504451), (141, 225393), (329, 96597), (423, 75131), (987, 32199), (2961, 10733)]