219979958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{434743}}^1$

素因数の和:434779

約数の個数: 16

約数和(自身を含む): 375618816

約数和(自身を除く): 155638858

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 434743, 869486, 4782173, 9564346, 9999089, 19998178, 109989979, 219979958]

約数ペア:

[(1, 219979958), (2, 109989979), (11, 19998178), (22, 9999089), (23, 9564346), (46, 4782173), (253, 869486), (506, 434743)]