18147255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{431}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 33343488

約数和(自身を除く): 15196233

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 401, 431, 1203, 1293, 2005, 2155, 2807, 3017, 6015, 6465, 8421, 9051, 14035, 15085, 42105, 45255, 172831, 518493, 864155, 1209817, 2592465, 3629451, 6049085, 18147255]

約数ペア:

[(1, 18147255), (3, 6049085), (5, 3629451), (7, 2592465), (15, 1209817), (21, 864155), (35, 518493), (105, 172831), (401, 45255), (431, 42105), (1203, 15085), (1293, 14035), (2005, 9051), (2155, 8421), (2807, 6465), (3017, 6015)]