8218431

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3697}}^1$

素因数の和:3735

約数の個数: 24

約数和(自身を含む): 13460720

約数和(自身を除く): 5242289

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 3697, 11091, 33273, 48061, 70243, 144183, 210729, 432549, 632187, 913159, 2739477, 8218431]

約数ペア:

[(1, 8218431), (3, 2739477), (9, 913159), (13, 632187), (19, 432549), (39, 210729), (57, 144183), (117, 70243), (171, 48061), (247, 33273), (741, 11091), (2223, 3697)]