20939888

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18433}}^1$

素因数の和:18512

約数の個数: 20

約数和(自身を含む): 41144688

約数和(自身を除く): 20204800

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18433, 36866, 73732, 147464, 294928, 1308743, 2617486, 5234972, 10469944, 20939888]

約数ペア:

[(1, 20939888), (2, 10469944), (4, 5234972), (8, 2617486), (16, 1308743), (71, 294928), (142, 147464), (284, 73732), (568, 36866), (1136, 18433)]