18935913

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4679}}^1$

素因数の和:4772

約数の個数: 16

約数和(自身を含む): 26956800

約数和(自身を除く): 8020887

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 4679, 14037, 88901, 266703, 332209, 996627, 6311971, 18935913]

約数ペア:

[(1, 18935913), (3, 6311971), (19, 996627), (57, 332209), (71, 266703), (213, 88901), (1349, 14037), (4047, 4679)]