81385947

素因数分解:

$3^2\times {\mathrm{167}}^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 119325024

約数和(自身を除く): 37939077

約数列:

[1, 3, 9, 167, 173, 313, 501, 519, 939, 1503, 1557, 2817, 28891, 52271, 54149, 86673, 156813, 162447, 260019, 470439, 487341, 9042883, 27128649, 81385947]

約数ペア:

[(1, 81385947), (3, 27128649), (9, 9042883), (167, 487341), (173, 470439), (313, 260019), (501, 162447), (519, 156813), (939, 86673), (1503, 54149), (1557, 52271), (2817, 28891)]