66723741

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2222

約数の個数: 36

約数和(自身を含む): 113746464

約数和(自身を除く): 47022723

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1491, 2131, 3479, 4473, 6393, 10437, 14917, 19179, 31311, 44751, 104419, 134253, 151301, 313257, 453903, 939771, 1059107, 1361709, 3177321, 7413749, 9531963, 22241247, 66723741]

約数ペア:

[(1, 66723741), (3, 22241247), (7, 9531963), (9, 7413749), (21, 3177321), (49, 1361709), (63, 1059107), (71, 939771), (147, 453903), (213, 313257), (441, 151301), (497, 134253), (639, 104419), (1491, 44751), (2131, 31311), (3479, 19179), (4473, 14917), (6393, 10437)]