281799357

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{5387}}^1$

素因数の和:5497

約数の個数: 32

約数和(自身を含む): 446902272

約数和(自身を除く): 165102915

約数列:

[1, 3, 7, 21, 47, 53, 141, 159, 329, 371, 987, 1113, 2491, 5387, 7473, 16161, 17437, 37709, 52311, 113127, 253189, 285511, 759567, 856533, 1772323, 1998577, 5316969, 5995731, 13419017, 40257051, 93933119, 281799357]

約数ペア:

[(1, 281799357), (3, 93933119), (7, 40257051), (21, 13419017), (47, 5995731), (53, 5316969), (141, 1998577), (159, 1772323), (329, 856533), (371, 759567), (987, 285511), (1113, 253189), (2491, 113127), (5387, 52311), (7473, 37709), (16161, 17437)]