21891699

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6221}}^1$

素因数の和:6267

約数の個数: 24

約数和(自身を含む): 34942752

約数和(自身を除く): 13051053

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 6221, 18663, 55989, 105757, 143083, 317271, 429249, 951813, 1287747, 2432411, 7297233, 21891699]

約数ペア:

[(1, 21891699), (3, 7297233), (9, 2432411), (17, 1287747), (23, 951813), (51, 429249), (69, 317271), (153, 143083), (207, 105757), (391, 55989), (1173, 18663), (3519, 6221)]