20905264

素因数分解:

$2^4\times {\mathrm{683}}^1\times {\mathrm{1913}}^1$

素因数の和:2604

約数の個数: 20

約数和(自身を含む): 40584456

約数和(自身を除く): 19679192

約数列:

[1, 2, 4, 8, 16, 683, 1366, 1913, 2732, 3826, 5464, 7652, 10928, 15304, 30608, 1306579, 2613158, 5226316, 10452632, 20905264]

約数ペア:

[(1, 20905264), (2, 10452632), (4, 5226316), (8, 2613158), (16, 1306579), (683, 30608), (1366, 15304), (1913, 10928), (2732, 7652), (3826, 5464)]