216813869

素因数分解:

${\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 239902080

約数和(自身を除く): 23088211

約数列:

[1, 17, 43, 73, 239, 289, 731, 1241, 3139, 4063, 10277, 12427, 17447, 21097, 53363, 69071, 174709, 296599, 750221, 907171, 2970053, 5042183, 12753757, 216813869]

約数ペア:

[(1, 216813869), (17, 12753757), (43, 5042183), (73, 2970053), (239, 907171), (289, 750221), (731, 296599), (1241, 174709), (3139, 69071), (4063, 53363), (10277, 21097), (12427, 17447)]