19933540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8237}}^1$

素因数の和:8268

約数の個数: 36

約数和(自身を含む): 46017468

約数和(自身を除く): 26083928

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8237, 16474, 32948, 41185, 82370, 90607, 164740, 181214, 362428, 453035, 906070, 996677, 1812140, 1993354, 3986708, 4983385, 9966770, 19933540]

約数ペア:

[(1, 19933540), (2, 9966770), (4, 4983385), (5, 3986708), (10, 1993354), (11, 1812140), (20, 996677), (22, 906070), (44, 453035), (55, 362428), (110, 181214), (121, 164740), (220, 90607), (242, 82370), (484, 41185), (605, 32948), (1210, 16474), (2420, 8237)]