21987675

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1237}}^1$

素因数の和:1332

約数の個数: 36

約数和(自身を含む): 39913120

約数和(自身を除く): 17925445

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 225, 237, 395, 711, 1185, 1237, 1975, 3555, 3711, 5925, 6185, 11133, 17775, 18555, 30925, 55665, 92775, 97723, 278325, 293169, 488615, 879507, 1465845, 2443075, 4397535, 7329225, 21987675]

約数ペア:

[(1, 21987675), (3, 7329225), (5, 4397535), (9, 2443075), (15, 1465845), (25, 879507), (45, 488615), (75, 293169), (79, 278325), (225, 97723), (237, 92775), (395, 55665), (711, 30925), (1185, 18555), (1237, 17775), (1975, 11133), (3555, 6185), (3711, 5925)]