76720721

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3847}}^1$

素因数の和:3909

約数の個数: 24

約数和(自身を含む): 100017216

約数和(自身を除く): 23296495

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1813, 2849, 3847, 19943, 26929, 42317, 142339, 188503, 296219, 996373, 1565729, 2073533, 6974611, 10960103, 76720721]

約数ペア:

[(1, 76720721), (7, 10960103), (11, 6974611), (37, 2073533), (49, 1565729), (77, 996373), (259, 296219), (407, 188503), (539, 142339), (1813, 42317), (2849, 26929), (3847, 19943)]