81087356

素因数分解:

$2^2\times 7^2\times {\mathrm{413711}}^1$

素因数の和:413729

約数の個数: 18

約数和(自身を含む): 165071088

約数和(自身を除く): 83983732

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 413711, 827422, 1654844, 2895977, 5791954, 11583908, 20271839, 40543678, 81087356]

約数ペア:

[(1, 81087356), (2, 40543678), (4, 20271839), (7, 11583908), (14, 5791954), (28, 2895977), (49, 1654844), (98, 827422), (196, 413711)]