21324260

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1543}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 44874816

約数和(自身を除く): 23550556

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1543, 2764, 3086, 3455, 6172, 6910, 7715, 13820, 15430, 30860, 1066213, 2132426, 4264852, 5331065, 10662130, 21324260]

約数ペア:

[(1, 21324260), (2, 10662130), (4, 5331065), (5, 4264852), (10, 2132426), (20, 1066213), (691, 30860), (1382, 15430), (1543, 13820), (2764, 7715), (3086, 6910), (3455, 6172)]