1721967

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 2513280

約数和(自身を除く): 791313

約数列:

[1, 3, 13, 39, 67, 201, 659, 871, 1977, 2613, 8567, 25701, 44153, 132459, 573989, 1721967]

約数ペア:

[(1, 1721967), (3, 573989), (13, 132459), (39, 44153), (67, 25701), (201, 8567), (659, 2613), (871, 1977)]