721218

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{1693}}^1$

素因数の和:1769

約数の個数: 16

約数和(自身を含む): 1463616

約数和(自身を除く): 742398

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 1693, 3386, 5079, 10158, 120203, 240406, 360609, 721218]

約数ペア:

[(1, 721218), (2, 360609), (3, 240406), (6, 120203), (71, 10158), (142, 5079), (213, 3386), (426, 1693)]