20745164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{471481}}^1$

素因数の和:471496

約数の個数: 12

約数和(自身を含む): 39604488

約数和(自身を除く): 18859324

約数列:

[1, 2, 4, 11, 22, 44, 471481, 942962, 1885924, 5186291, 10372582, 20745164]

約数ペア:

[(1, 20745164), (2, 10372582), (4, 5186291), (11, 1885924), (22, 942962), (44, 471481)]