216816321

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1\times {\mathrm{2729}}^1$

素因数の和:3176

約数の個数: 16

約数和(自身を含む): 294053760

約数和(自身を除く): 77237439

約数列:

[1, 3, 71, 213, 373, 1119, 2729, 8187, 26483, 79449, 193759, 581277, 1017917, 3053751, 72272107, 216816321]

約数ペア:

[(1, 216816321), (3, 72272107), (71, 3053751), (213, 1017917), (373, 581277), (1119, 193759), (2729, 79449), (8187, 26483)]