81994367

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 108595200

約数和(自身を除く): 26600833

約数列:

[1, 7, 13, 19, 47, 91, 133, 247, 329, 611, 893, 1009, 1729, 4277, 6251, 7063, 11609, 13117, 19171, 47423, 81263, 91819, 134197, 249223, 331961, 616499, 901037, 1744561, 4315493, 6307259, 11713481, 81994367]

約数ペア:

[(1, 81994367), (7, 11713481), (13, 6307259), (19, 4315493), (47, 1744561), (91, 901037), (133, 616499), (247, 331961), (329, 249223), (611, 134197), (893, 91819), (1009, 81263), (1729, 47423), (4277, 19171), (6251, 13117), (7063, 11609)]