78689151

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 122984400

約数和(自身を除く): 44295249

約数列:

[1, 3, 9, 27, 29, 81, 87, 139, 241, 261, 417, 723, 783, 1251, 2169, 2349, 3753, 4031, 6507, 6989, 11259, 12093, 19521, 20967, 33499, 36279, 62901, 100497, 108837, 188703, 301491, 326511, 566109, 904473, 971471, 2713419, 2914413, 8743239, 26229717, 78689151]

約数ペア:

[(1, 78689151), (3, 26229717), (9, 8743239), (27, 2914413), (29, 2713419), (81, 971471), (87, 904473), (139, 566109), (241, 326511), (261, 301491), (417, 188703), (723, 108837), (783, 100497), (1251, 62901), (2169, 36279), (2349, 33499), (3753, 20967), (4031, 19521), (6507, 12093), (6989, 11259)]