78200001

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{71809}}^1$

素因数の和:71837

約数の個数: 18

約数和(自身を含む): 124159490

約数和(自身を除く): 45959489

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 71809, 215427, 646281, 789899, 2369697, 7109091, 8688889, 26066667, 78200001]

約数ペア:

[(1, 78200001), (3, 26066667), (9, 8688889), (11, 7109091), (33, 2369697), (99, 789899), (121, 646281), (363, 215427), (1089, 71809)]