18039505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{761}}^1$

素因数の和:1208

約数の個数: 16

約数和(自身を含む): 23701248

約数和(自身を除く): 5661743

約数列:

[1, 5, 11, 55, 431, 761, 2155, 3805, 4741, 8371, 23705, 41855, 327991, 1639955, 3607901, 18039505]

約数ペア:

[(1, 18039505), (5, 3607901), (11, 1639955), (55, 327991), (431, 41855), (761, 23705), (2155, 8371), (3805, 4741)]