21252925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 28078560

約数和(自身を除く): 6825635

約数列:

[1, 5, 19, 25, 95, 101, 443, 475, 505, 1919, 2215, 2525, 8417, 9595, 11075, 42085, 44743, 47975, 210425, 223715, 850117, 1118575, 4250585, 21252925]

約数ペア:

[(1, 21252925), (5, 4250585), (19, 1118575), (25, 850117), (95, 223715), (101, 210425), (443, 47975), (475, 44743), (505, 42085), (1919, 11075), (2215, 9595), (2525, 8417)]