21330375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{5171}}^1$

素因数の和:5200

約数の個数: 32

約数和(自身を含む): 38727936

約数和(自身を除く): 17397561

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 125, 165, 275, 375, 825, 1375, 4125, 5171, 15513, 25855, 56881, 77565, 129275, 170643, 284405, 387825, 646375, 853215, 1422025, 1939125, 4266075, 7110125, 21330375]

約数ペア:

[(1, 21330375), (3, 7110125), (5, 4266075), (11, 1939125), (15, 1422025), (25, 853215), (33, 646375), (55, 387825), (75, 284405), (125, 170643), (165, 129275), (275, 77565), (375, 56881), (825, 25855), (1375, 15513), (4125, 5171)]