21995235

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5039}}^1$

素因数の和:5147

約数の個数: 24

約数和(自身を含む): 38525760

約数和(自身を除く): 16530525

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 5039, 15117, 25195, 45351, 75585, 226755, 488783, 1466349, 2443915, 4399047, 7331745, 21995235]

約数ペア:

[(1, 21995235), (3, 7331745), (5, 4399047), (9, 2443915), (15, 1466349), (45, 488783), (97, 226755), (291, 75585), (485, 45351), (873, 25195), (1455, 15117), (4365, 5039)]