28207419

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{6779}}^1$

素因数の和:6874

約数の個数: 16

約数和(自身を含む): 40137600

約数和(自身を除く): 11930181

約数列:

[1, 3, 19, 57, 73, 219, 1387, 4161, 6779, 20337, 128801, 386403, 494867, 1484601, 9402473, 28207419]

約数ペア:

[(1, 28207419), (3, 9402473), (19, 1484601), (57, 494867), (73, 386403), (219, 128801), (1387, 20337), (4161, 6779)]