81713723

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3467}}^1$

素因数の和:3531

約数の個数: 24

約数和(自身を含む): 105163632

約数和(自身を除く): 23449909

約数列:

[1, 7, 13, 37, 49, 91, 259, 481, 637, 1813, 3367, 3467, 23569, 24269, 45071, 128279, 169883, 315497, 897953, 1667627, 2208479, 6285671, 11673389, 81713723]

約数ペア:

[(1, 81713723), (7, 11673389), (13, 6285671), (37, 2208479), (49, 1667627), (91, 897953), (259, 315497), (481, 169883), (637, 128279), (1813, 45071), (3367, 24269), (3467, 23569)]