67687571

素因数分解:

$7^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:363

約数の個数: 24

約数和(自身を含む): 80985600

約数和(自身を除く): 13298029

約数列:

[1, 7, 49, 73, 127, 149, 511, 889, 1043, 3577, 6223, 7301, 9271, 10877, 18923, 64897, 76139, 132461, 454279, 532973, 927227, 1381379, 9669653, 67687571]

約数ペア:

[(1, 67687571), (7, 9669653), (49, 1381379), (73, 927227), (127, 532973), (149, 454279), (511, 132461), (889, 76139), (1043, 64897), (3577, 18923), (6223, 10877), (7301, 9271)]