20995540

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9811}}^1$

素因数の和:9927

約数の個数: 24

約数和(自身を含む): 44507232

約数和(自身を除く): 23511692

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9811, 19622, 39244, 49055, 98110, 196220, 1049777, 2099554, 4199108, 5248885, 10497770, 20995540]

約数ペア:

[(1, 20995540), (2, 10497770), (4, 5248885), (5, 4199108), (10, 2099554), (20, 1049777), (107, 196220), (214, 98110), (428, 49055), (535, 39244), (1070, 19622), (2140, 9811)]