20207908

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{751}}^1$

素因数の和:824

約数の個数: 36

約数和(自身を含む): 41817216

約数和(自身を除く): 21609308

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 751, 868, 961, 1502, 1922, 3004, 3844, 5257, 6727, 10514, 13454, 21028, 23281, 26908, 46562, 93124, 162967, 325934, 651868, 721711, 1443422, 2886844, 5051977, 10103954, 20207908]

約数ペア:

[(1, 20207908), (2, 10103954), (4, 5051977), (7, 2886844), (14, 1443422), (28, 721711), (31, 651868), (62, 325934), (124, 162967), (217, 93124), (434, 46562), (751, 26908), (868, 23281), (961, 21028), (1502, 13454), (1922, 10514), (3004, 6727), (3844, 5257)]