21565725

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{683}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 35792352

約数和(自身を除く): 14226627

約数列:

[1, 3, 5, 15, 25, 75, 421, 683, 1263, 2049, 2105, 3415, 6315, 10245, 10525, 17075, 31575, 51225, 287543, 862629, 1437715, 4313145, 7188575, 21565725]

約数ペア:

[(1, 21565725), (3, 7188575), (5, 4313145), (15, 1437715), (25, 862629), (75, 287543), (421, 51225), (683, 31575), (1263, 17075), (2049, 10525), (2105, 10245), (3415, 6315)]