213421255

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{43159}}^1$

素因数の和:43230

約数の個数: 16

約数和(自身を含む): 273461760

約数和(自身を除く): 60040505

約数列:

[1, 5, 23, 43, 115, 215, 989, 4945, 43159, 215795, 992657, 1855837, 4963285, 9279185, 42684251, 213421255]

約数ペア:

[(1, 213421255), (5, 42684251), (23, 9279185), (43, 4963285), (115, 1855837), (215, 992657), (989, 215795), (4945, 43159)]