251016813

素因数分解:

$3^5\times {\mathrm{151}}^1\times {\mathrm{6841}}^1$

素因数の和:7007

約数の個数: 24

約数和(自身を含む): 378554176

約数和(自身を除く): 127537363

約数列:

[1, 3, 9, 27, 81, 151, 243, 453, 1359, 4077, 6841, 12231, 20523, 36693, 61569, 184707, 554121, 1032991, 1662363, 3098973, 9296919, 27890757, 83672271, 251016813]

約数ペア:

[(1, 251016813), (3, 83672271), (9, 27890757), (27, 9296919), (81, 3098973), (151, 1662363), (243, 1032991), (453, 554121), (1359, 184707), (4077, 61569), (6841, 36693), (12231, 20523)]