21899045

素因数分解:

$5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1999}}^1$

素因数の和:2324

約数の個数: 16

約数和(自身を含む): 30144000

約数和(自身を除く): 8244955

約数列:

[1, 5, 7, 35, 313, 1565, 1999, 2191, 9995, 10955, 13993, 69965, 625687, 3128435, 4379809, 21899045]

約数ペア:

[(1, 21899045), (5, 4379809), (7, 3128435), (35, 625687), (313, 69965), (1565, 13993), (1999, 10955), (2191, 9995)]