18881085

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 31413888

約数和(自身を除く): 12532803

約数列:

[1, 3, 5, 15, 43, 73, 129, 215, 219, 365, 401, 645, 1095, 1203, 2005, 3139, 6015, 9417, 15695, 17243, 29273, 47085, 51729, 86215, 87819, 146365, 258645, 439095, 1258739, 3776217, 6293695, 18881085]

約数ペア:

[(1, 18881085), (3, 6293695), (5, 3776217), (15, 1258739), (43, 439095), (73, 258645), (129, 146365), (215, 87819), (219, 86215), (365, 51729), (401, 47085), (645, 29273), (1095, 17243), (1203, 15695), (2005, 9417), (3139, 6015)]