21243032

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1669}}^1$

素因数の和:1755

約数の個数: 32

約数和(自身を含む): 41883600

約数和(自身を除く): 20640568

約数列:

[1, 2, 4, 8, 37, 43, 74, 86, 148, 172, 296, 344, 1591, 1669, 3182, 3338, 6364, 6676, 12728, 13352, 61753, 71767, 123506, 143534, 247012, 287068, 494024, 574136, 2655379, 5310758, 10621516, 21243032]

約数ペア:

[(1, 21243032), (2, 10621516), (4, 5310758), (8, 2655379), (37, 574136), (43, 494024), (74, 287068), (86, 247012), (148, 143534), (172, 123506), (296, 71767), (344, 61753), (1591, 13352), (1669, 12728), (3182, 6676), (3338, 6364)]