18780949

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3960

約数の個数: 16

約数和(自身を含む): 22510080

約数和(自身を除く): 3729131

約数列:

[1, 11, 19, 23, 209, 253, 437, 3907, 4807, 42977, 74233, 89861, 816563, 988471, 1707359, 18780949]

約数ペア:

[(1, 18780949), (11, 1707359), (19, 988471), (23, 816563), (209, 89861), (253, 74233), (437, 42977), (3907, 4807)]