251567127

素因数分解:

$3^4\times 7^2\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:530

約数の個数: 60

約数和(自身を含む): 440635536

約数和(自身を除く): 189068409

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 241, 263, 441, 567, 723, 789, 1323, 1687, 1841, 2169, 2367, 3969, 5061, 5523, 6507, 7101, 11809, 12887, 15183, 16569, 19521, 21303, 35427, 38661, 45549, 49707, 63383, 106281, 115983, 136647, 149121, 190149, 318843, 347949, 443681, 570447, 956529, 1043847, 1331043, 1711341, 3105767, 3993129, 5134023, 9317301, 11979387, 27951903, 35938161, 83855709, 251567127]

約数ペア:

[(1, 251567127), (3, 83855709), (7, 35938161), (9, 27951903), (21, 11979387), (27, 9317301), (49, 5134023), (63, 3993129), (81, 3105767), (147, 1711341), (189, 1331043), (241, 1043847), (263, 956529), (441, 570447), (567, 443681), (723, 347949), (789, 318843), (1323, 190149), (1687, 149121), (1841, 136647), (2169, 115983), (2367, 106281), (3969, 63383), (5061, 49707), (5523, 45549), (6507, 38661), (7101, 35427), (11809, 21303), (12887, 19521), (15183, 16569)]