21669609

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{8293}}^1$

素因数の和:8376

約数の個数: 16

約数和(自身を含む): 31583552

約数和(自身を除く): 9913943

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 8293, 24879, 107809, 323427, 555631, 1666893, 7223203, 21669609]

約数ペア:

[(1, 21669609), (3, 7223203), (13, 1666893), (39, 555631), (67, 323427), (201, 107809), (871, 24879), (2613, 8293)]