28152621

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19429}}^1$

素因数の和:19465

約数の個数: 24

約数和(自身を含む): 48497280

約数和(自身を除く): 20344659

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19429, 58287, 136003, 174861, 408009, 446867, 1224027, 1340601, 3128069, 4021803, 9384207, 28152621]

約数ペア:

[(1, 28152621), (3, 9384207), (7, 4021803), (9, 3128069), (21, 1340601), (23, 1224027), (63, 446867), (69, 408009), (161, 174861), (207, 136003), (483, 58287), (1449, 19429)]