21220776575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{632041}}^1$

素因数の和:632147

約数の個数: 24

約数和(自身を含む): 28214354880

約数和(自身を除く): 6993578305

約数列:

[1, 5, 17, 25, 79, 85, 395, 425, 1343, 1975, 6715, 33575, 632041, 3160205, 10744697, 15801025, 49931239, 53723485, 249656195, 268617425, 848831063, 1248280975, 4244155315, 21220776575]

約数ペア:

[(1, 21220776575), (5, 4244155315), (17, 1248280975), (25, 848831063), (79, 268617425), (85, 249656195), (395, 53723485), (425, 49931239), (1343, 15801025), (1975, 10744697), (6715, 3160205), (33575, 632041)]