81072881

素因数分解:

${\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 90184320

約数和(自身を除く): 9111439

約数列:

[1, 17, 53, 67, 79, 289, 901, 1139, 1343, 3551, 4187, 5293, 15317, 19363, 22831, 60367, 71179, 89981, 280529, 1026239, 1210043, 1529677, 4768993, 81072881]

約数ペア:

[(1, 81072881), (17, 4768993), (53, 1529677), (67, 1210043), (79, 1026239), (289, 280529), (901, 89981), (1139, 71179), (1343, 60367), (3551, 22831), (4187, 19363), (5293, 15317)]