20855590987

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{51581}}^1$

素因数の和:51747

約数の個数: 32

約数和(自身を含む): 26740108800

約数和(自身を除く): 5884517813

約数列:

[1, 7, 11, 59, 77, 89, 413, 623, 649, 979, 4543, 5251, 6853, 36757, 51581, 57761, 361067, 404327, 567391, 3043279, 3971737, 4590709, 21302953, 32134963, 33476069, 50497799, 234332483, 270851831, 353484593, 1895962817, 2979370141, 20855590987]

約数ペア:

[(1, 20855590987), (7, 2979370141), (11, 1895962817), (59, 353484593), (77, 270851831), (89, 234332483), (413, 50497799), (623, 33476069), (649, 32134963), (979, 21302953), (4543, 4590709), (5251, 3971737), (6853, 3043279), (36757, 567391), (51581, 404327), (57761, 361067)]