81343479

素因数分解:

$3^1\times 7^4\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:545

約数の個数: 40

約数和(自身を含む): 132296832

約数和(自身を除く): 50953353

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 343, 483, 491, 1029, 1127, 1473, 2401, 3381, 3437, 7203, 7889, 10311, 11293, 23667, 24059, 33879, 55223, 72177, 79051, 165669, 168413, 237153, 505239, 553357, 1178891, 1660071, 3536673, 3873499, 11620497, 27114493, 81343479]

約数ペア:

[(1, 81343479), (3, 27114493), (7, 11620497), (21, 3873499), (23, 3536673), (49, 1660071), (69, 1178891), (147, 553357), (161, 505239), (343, 237153), (483, 168413), (491, 165669), (1029, 79051), (1127, 72177), (1473, 55223), (2401, 33879), (3381, 24059), (3437, 23667), (7203, 11293), (7889, 10311)]