279898101

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 504651264

約数和(自身を除く): 224753163

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 361, 397, 399, 589, 651, 1083, 1191, 1197, 1767, 1953, 2527, 2779, 3249, 3573, 4123, 5301, 7543, 7581, 8337, 11191, 12307, 12369, 22629, 22743, 25011, 33573, 36921, 37107, 52801, 67887, 78337, 86149, 100719, 110763, 143317, 158403, 233833, 235011, 258447, 429951, 475209, 701499, 705033, 775341, 1003219, 1289853, 1636831, 2104497, 3009657, 4442827, 4910493, 9028971, 13328481, 14731479, 31099789, 39985443, 93299367, 279898101]

約数ペア:

[(1, 279898101), (3, 93299367), (7, 39985443), (9, 31099789), (19, 14731479), (21, 13328481), (31, 9028971), (57, 4910493), (63, 4442827), (93, 3009657), (133, 2104497), (171, 1636831), (217, 1289853), (279, 1003219), (361, 775341), (397, 705033), (399, 701499), (589, 475209), (651, 429951), (1083, 258447), (1191, 235011), (1197, 233833), (1767, 158403), (1953, 143317), (2527, 110763), (2779, 100719), (3249, 86149), (3573, 78337), (4123, 67887), (5301, 52801), (7543, 37107), (7581, 36921), (8337, 33573), (11191, 25011), (12307, 22743), (12369, 22629)]