8678421

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{5639}}^1$

素因数の和:5670

約数の個数: 20

約数和(自身を含む): 13648800

約数和(自身を除く): 4970379

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 5639, 16917, 50751, 107141, 152253, 321423, 456759, 964269, 2892807, 8678421]

約数ペア:

[(1, 8678421), (3, 2892807), (9, 964269), (19, 456759), (27, 321423), (57, 152253), (81, 107141), (171, 50751), (513, 16917), (1539, 5639)]