81701721

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{761}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 120456960

約数和(自身を除く): 38755239

約数列:

[1, 3, 9, 79, 151, 237, 453, 711, 761, 1359, 2283, 6849, 11929, 35787, 60119, 107361, 114911, 180357, 344733, 541071, 1034199, 9077969, 27233907, 81701721]

約数ペア:

[(1, 81701721), (3, 27233907), (9, 9077969), (79, 1034199), (151, 541071), (237, 344733), (453, 180357), (711, 114911), (761, 107361), (1359, 60119), (2283, 35787), (6849, 11929)]