18862921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{10651}}^1$

素因数の和:10692

約数の個数: 16

約数和(自身を含む): 24542208

約数和(自身を除く): 5679287

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 10651, 74557, 117161, 244973, 820127, 1714811, 2694703, 18862921]

約数ペア:

[(1, 18862921), (7, 2694703), (11, 1714811), (23, 820127), (77, 244973), (161, 117161), (253, 74557), (1771, 10651)]