20686970889

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{746041}}^1$

素因数の和:746142

約数の個数: 32

約数和(自身を含む): 33422681600

約数和(自身を除く): 12735710711

約数列:

[1, 3, 9, 13, 27, 39, 79, 117, 237, 351, 711, 1027, 2133, 3081, 9243, 27729, 746041, 2238123, 6714369, 9698533, 20143107, 29095599, 58937239, 87286797, 176811717, 261860391, 530435151, 766184107, 1591305453, 2298552321, 6895656963, 20686970889]

約数ペア:

[(1, 20686970889), (3, 6895656963), (9, 2298552321), (13, 1591305453), (27, 766184107), (39, 530435151), (79, 261860391), (117, 176811717), (237, 87286797), (351, 58937239), (711, 29095599), (1027, 20143107), (2133, 9698533), (3081, 6714369), (9243, 2238123), (27729, 746041)]