21910605

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 37497600

約数和(自身を除く): 15586995

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1549, 2829, 4647, 4715, 7745, 14145, 23235, 35627, 63509, 106881, 178135, 190527, 317545, 534405, 952635, 1460707, 4382121, 7303535, 21910605]

約数ペア:

[(1, 21910605), (3, 7303535), (5, 4382121), (15, 1460707), (23, 952635), (41, 534405), (69, 317545), (115, 190527), (123, 178135), (205, 106881), (345, 63509), (615, 35627), (943, 23235), (1549, 14145), (2829, 7745), (4647, 4715)]