20345578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{10391}}^1$

素因数の和:10493

約数の個数: 16

約数和(自身を含む): 33670080

約数和(自身を除く): 13324502

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 10391, 20782, 114301, 228602, 924799, 1849598, 10172789, 20345578]

約数ペア:

[(1, 20345578), (2, 10172789), (11, 1849598), (22, 924799), (89, 228602), (178, 114301), (979, 20782), (1958, 10391)]