21516849

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2099}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 11898351

約数列:

[1, 3, 9, 17, 51, 67, 153, 201, 603, 1139, 2099, 3417, 6297, 10251, 18891, 35683, 107049, 140633, 321147, 421899, 1265697, 2390761, 7172283, 21516849]

約数ペア:

[(1, 21516849), (3, 7172283), (9, 2390761), (17, 1265697), (51, 421899), (67, 321147), (153, 140633), (201, 107049), (603, 35683), (1139, 18891), (2099, 10251), (3417, 6297)]