25820991

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 46101600

約数和(自身を除く): 20280609

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 147, 189, 203, 261, 441, 609, 673, 783, 1323, 1421, 1827, 2019, 4263, 4711, 5481, 6057, 12789, 14133, 18171, 19517, 32977, 38367, 42399, 58551, 98931, 127197, 136619, 175653, 296793, 409857, 526959, 890379, 956333, 1229571, 2868999, 3688713, 8606997, 25820991]

約数ペア:

[(1, 25820991), (3, 8606997), (7, 3688713), (9, 2868999), (21, 1229571), (27, 956333), (29, 890379), (49, 526959), (63, 409857), (87, 296793), (147, 175653), (189, 136619), (203, 127197), (261, 98931), (441, 58551), (609, 42399), (673, 38367), (783, 32977), (1323, 19517), (1421, 18171), (1827, 14133), (2019, 12789), (4263, 6057), (4711, 5481)]