21800955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3571}}^1$

素因数の和:3627

約数の個数: 32

約数和(自身を含む): 39091968

約数和(自身を除く): 17291013

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 111, 165, 185, 407, 555, 1221, 2035, 3571, 6105, 10713, 17855, 39281, 53565, 117843, 132127, 196405, 396381, 589215, 660635, 1453397, 1981905, 4360191, 7266985, 21800955]

約数ペア:

[(1, 21800955), (3, 7266985), (5, 4360191), (11, 1981905), (15, 1453397), (33, 660635), (37, 589215), (55, 396381), (111, 196405), (165, 132127), (185, 117843), (407, 53565), (555, 39281), (1221, 17855), (2035, 10713), (3571, 6105)]