7139421

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{4639}}^1$

素因数の和:4670

約数の個数: 20

約数和(自身を含む): 11228800

約数和(自身を除く): 4089379

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 4639, 13917, 41751, 88141, 125253, 264423, 375759, 793269, 2379807, 7139421]

約数ペア:

[(1, 7139421), (3, 2379807), (9, 793269), (19, 375759), (27, 264423), (57, 125253), (81, 88141), (171, 41751), (513, 13917), (1539, 4639)]