20905712

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{56809}}^1$

素因数の和:56840

約数の個数: 20

約数和(自身を含む): 42266640

約数和(自身を除く): 21360928

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 56809, 113618, 227236, 454472, 908944, 1306607, 2613214, 5226428, 10452856, 20905712]

約数ペア:

[(1, 20905712), (2, 10452856), (4, 5226428), (8, 2613214), (16, 1306607), (23, 908944), (46, 454472), (92, 227236), (184, 113618), (368, 56809)]