20215516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{1097}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 37630656

約数和(自身を除く): 17415140

約数列:

[1, 2, 4, 17, 34, 68, 271, 542, 1084, 1097, 2194, 4388, 4607, 9214, 18428, 18649, 37298, 74596, 297287, 594574, 1189148, 5053879, 10107758, 20215516]

約数ペア:

[(1, 20215516), (2, 10107758), (4, 5053879), (17, 1189148), (34, 594574), (68, 297287), (271, 74596), (542, 37298), (1084, 18649), (1097, 18428), (2194, 9214), (4388, 4607)]