19821212

素因数分解:

$2^2\times {\mathrm{71}}^2\times {\mathrm{983}}^1$

素因数の和:1129

約数の個数: 18

約数和(自身を含む): 35218344

約数和(自身を除く): 15397132

約数列:

[1, 2, 4, 71, 142, 284, 983, 1966, 3932, 5041, 10082, 20164, 69793, 139586, 279172, 4955303, 9910606, 19821212]

約数ペア:

[(1, 19821212), (2, 9910606), (4, 4955303), (71, 279172), (142, 139586), (284, 69793), (983, 20164), (1966, 10082), (3932, 5041)]