219799251

素因数分解:

$3^4\times 7^2\times {\mathrm{79}}^1\times {\mathrm{701}}^1$

素因数の和:806

約数の個数: 60

約数和(自身を含む): 387335520

約数和(自身を除く): 167536269

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 79, 81, 147, 189, 237, 441, 553, 567, 701, 711, 1323, 1659, 2103, 2133, 3871, 3969, 4907, 4977, 6309, 6399, 11613, 14721, 14931, 18927, 34349, 34839, 44163, 44793, 55379, 56781, 103047, 104517, 132489, 166137, 309141, 313551, 387653, 397467, 498411, 927423, 1162959, 1495233, 2713571, 2782269, 3488877, 4485699, 8140713, 10466631, 24422139, 31399893, 73266417, 219799251]

約数ペア:

[(1, 219799251), (3, 73266417), (7, 31399893), (9, 24422139), (21, 10466631), (27, 8140713), (49, 4485699), (63, 3488877), (79, 2782269), (81, 2713571), (147, 1495233), (189, 1162959), (237, 927423), (441, 498411), (553, 397467), (567, 387653), (701, 313551), (711, 309141), (1323, 166137), (1659, 132489), (2103, 104517), (2133, 103047), (3871, 56781), (3969, 55379), (4907, 44793), (4977, 44163), (6309, 34839), (6399, 34349), (11613, 18927), (14721, 14931)]