20784272

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{56479}}^1$

素因数の和:56510

約数の個数: 20

約数和(自身を含む): 42021120

約数和(自身を除く): 21236848

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 56479, 112958, 225916, 451832, 903664, 1299017, 2598034, 5196068, 10392136, 20784272]

約数ペア:

[(1, 20784272), (2, 10392136), (4, 5196068), (8, 2598034), (16, 1299017), (23, 903664), (46, 451832), (92, 225916), (184, 112958), (368, 56479)]