20192917689

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1990823}}^1$

素因数の和:1990866

約数の個数: 36

約数和(自身を含む): 35404814016

約数和(自身を除く): 15211896327

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 3381, 10143, 1990823, 5972469, 13935761, 17917407, 41807283, 45788929, 97550327, 125421849, 137366787, 292650981, 320522503, 412100361, 877952943, 961567509, 2243657521, 2884702527, 6730972563, 20192917689]

約数ペア:

[(1, 20192917689), (3, 6730972563), (7, 2884702527), (9, 2243657521), (21, 961567509), (23, 877952943), (49, 412100361), (63, 320522503), (69, 292650981), (147, 137366787), (161, 125421849), (207, 97550327), (441, 45788929), (483, 41807283), (1127, 17917407), (1449, 13935761), (3381, 5972469), (10143, 1990823)]