19649337

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 28643328

約数和(自身を除く): 8993991

約数列:

[1, 3, 23, 47, 69, 73, 83, 141, 219, 249, 1081, 1679, 1909, 3243, 3431, 3901, 5037, 5727, 6059, 10293, 11703, 18177, 78913, 89723, 139357, 236739, 269169, 284773, 418071, 854319, 6549779, 19649337]

約数ペア:

[(1, 19649337), (3, 6549779), (23, 854319), (47, 418071), (69, 284773), (73, 269169), (83, 236739), (141, 139357), (219, 89723), (249, 78913), (1081, 18177), (1679, 11703), (1909, 10293), (3243, 6059), (3431, 5727), (3901, 5037)]