8520071

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 10506240

約数和(自身を除く): 1986169

約数列:

[1, 7, 31, 49, 71, 79, 217, 497, 553, 1519, 2201, 2449, 3479, 3871, 5609, 15407, 17143, 39263, 107849, 120001, 173879, 274841, 1217153, 8520071]

約数ペア:

[(1, 8520071), (7, 1217153), (31, 274841), (49, 173879), (71, 120001), (79, 107849), (217, 39263), (497, 17143), (553, 15407), (1519, 5609), (2201, 3871), (2449, 3479)]