19089620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{86771}}^1$

素因数の和:86791

約数の個数: 24

約数和(自身を含む): 43733088

約数和(自身を除く): 24643468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 86771, 173542, 347084, 433855, 867710, 954481, 1735420, 1908962, 3817924, 4772405, 9544810, 19089620]

約数ペア:

[(1, 19089620), (2, 9544810), (4, 4772405), (5, 3817924), (10, 1908962), (11, 1735420), (20, 954481), (22, 867710), (44, 433855), (55, 347084), (110, 173542), (220, 86771)]