21851073

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{19739}}^1$

素因数の和:19789

約数の個数: 16

約数和(自身を含む): 33163200

約数和(自身を除く): 11312127

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 19739, 59217, 177651, 532953, 809299, 2427897, 7283691, 21851073]

約数ペア:

[(1, 21851073), (3, 7283691), (9, 2427897), (27, 809299), (41, 532953), (123, 177651), (369, 59217), (1107, 19739)]