7971999

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 12773376

約数和(自身を除く): 4801377

約数列:

[1, 3, 7, 21, 41, 47, 123, 141, 197, 287, 329, 591, 861, 987, 1379, 1927, 4137, 5781, 8077, 9259, 13489, 24231, 27777, 40467, 56539, 64813, 169617, 194439, 379619, 1138857, 2657333, 7971999]

約数ペア:

[(1, 7971999), (3, 2657333), (7, 1138857), (21, 379619), (41, 194439), (47, 169617), (123, 64813), (141, 56539), (197, 40467), (287, 27777), (329, 24231), (591, 13489), (861, 9259), (987, 8077), (1379, 5781), (1927, 4137)]