156716847

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{7561}}^1$

素因数の和:7628

約数の個数: 36

約数和(自身を含む): 268965216

約数和(自身を除く): 112248369

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 2303, 2961, 6909, 7561, 20727, 22683, 52927, 68049, 158781, 355367, 370489, 476343, 1066101, 1111467, 2487569, 3198303, 3334401, 7462707, 17412983, 22388121, 52238949, 156716847]

約数ペア:

[(1, 156716847), (3, 52238949), (7, 22388121), (9, 17412983), (21, 7462707), (47, 3334401), (49, 3198303), (63, 2487569), (141, 1111467), (147, 1066101), (329, 476343), (423, 370489), (441, 355367), (987, 158781), (2303, 68049), (2961, 52927), (6909, 22683), (7561, 20727)]