27900621

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 49420800

約数和(自身を除く): 21520179

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 109, 119, 153, 239, 327, 357, 717, 763, 981, 1071, 1673, 1853, 2151, 2289, 4063, 5019, 5559, 6867, 12189, 12971, 15057, 16677, 26051, 28441, 36567, 38913, 78153, 85323, 116739, 182357, 234459, 255969, 442867, 547071, 1328601, 1641213, 3100069, 3985803, 9300207, 27900621]

約数ペア:

[(1, 27900621), (3, 9300207), (7, 3985803), (9, 3100069), (17, 1641213), (21, 1328601), (51, 547071), (63, 442867), (109, 255969), (119, 234459), (153, 182357), (239, 116739), (327, 85323), (357, 78153), (717, 38913), (763, 36567), (981, 28441), (1071, 26051), (1673, 16677), (1853, 15057), (2151, 12971), (2289, 12189), (4063, 6867), (5019, 5559)]