18680585

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{401}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 28249344

約数和(自身を除く): 9568759

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 401, 605, 847, 1331, 2005, 2807, 4235, 4411, 6655, 9317, 14035, 22055, 30877, 46585, 48521, 154385, 242605, 339647, 533731, 1698235, 2668655, 3736117, 18680585]

約数ペア:

[(1, 18680585), (5, 3736117), (7, 2668655), (11, 1698235), (35, 533731), (55, 339647), (77, 242605), (121, 154385), (385, 48521), (401, 46585), (605, 30877), (847, 22055), (1331, 14035), (2005, 9317), (2807, 6655), (4235, 4411)]