81275831

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 105627648

約数和(自身を除く): 24351817

約数列:

[1, 7, 13, 31, 47, 91, 217, 329, 403, 611, 613, 1457, 2821, 4277, 4291, 7969, 10199, 18941, 19003, 28811, 55783, 132587, 133021, 201677, 247039, 374543, 893141, 1729273, 2621801, 6251987, 11610833, 81275831]

約数ペア:

[(1, 81275831), (7, 11610833), (13, 6251987), (31, 2621801), (47, 1729273), (91, 893141), (217, 374543), (329, 247039), (403, 201677), (611, 133021), (613, 132587), (1457, 55783), (2821, 28811), (4277, 19003), (4291, 18941), (7969, 10199)]