21198564

素因数分解:

$2^2\times 3^3\times {\mathrm{331}}^1\times {\mathrm{593}}^1$

素因数の和:937

約数の個数: 48

約数和(自身を含む): 55218240

約数和(自身を除く): 34019676

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 331, 593, 662, 993, 1186, 1324, 1779, 1986, 2372, 2979, 3558, 3972, 5337, 5958, 7116, 8937, 10674, 11916, 16011, 17874, 21348, 32022, 35748, 64044, 196283, 392566, 588849, 785132, 1177698, 1766547, 2355396, 3533094, 5299641, 7066188, 10599282, 21198564]

約数ペア:

[(1, 21198564), (2, 10599282), (3, 7066188), (4, 5299641), (6, 3533094), (9, 2355396), (12, 1766547), (18, 1177698), (27, 785132), (36, 588849), (54, 392566), (108, 196283), (331, 64044), (593, 35748), (662, 32022), (993, 21348), (1186, 17874), (1324, 16011), (1779, 11916), (1986, 10674), (2372, 8937), (2979, 7116), (3558, 5958), (3972, 5337)]