16987225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{953}}^1$

素因数の和:1017

約数の個数: 24

約数和(自身を含む): 22712832

約数和(自身を除く): 5725607

約数列:

[1, 5, 23, 25, 31, 115, 155, 575, 713, 775, 953, 3565, 4765, 17825, 21919, 23825, 29543, 109595, 147715, 547975, 679489, 738575, 3397445, 16987225]

約数ペア:

[(1, 16987225), (5, 3397445), (23, 738575), (25, 679489), (31, 547975), (115, 147715), (155, 109595), (575, 29543), (713, 23825), (775, 21919), (953, 17825), (3565, 4765)]