81787797

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2699}}^1$

素因数の和:2762

約数の個数: 48

約数和(自身を含む): 149385600

約数和(自身を除く): 67597803

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 259, 273, 333, 481, 777, 819, 1443, 2331, 2699, 3367, 4329, 8097, 10101, 18893, 24291, 30303, 35087, 56679, 99863, 105261, 170037, 245609, 299589, 315783, 699041, 736827, 898767, 1298219, 2097123, 2210481, 3894657, 6291369, 9087533, 11683971, 27262599, 81787797]

約数ペア:

[(1, 81787797), (3, 27262599), (7, 11683971), (9, 9087533), (13, 6291369), (21, 3894657), (37, 2210481), (39, 2097123), (63, 1298219), (91, 898767), (111, 736827), (117, 699041), (259, 315783), (273, 299589), (333, 245609), (481, 170037), (777, 105261), (819, 99863), (1443, 56679), (2331, 35087), (2699, 30303), (3367, 24291), (4329, 18893), (8097, 10101)]