19848026

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20981}}^1$

素因数の和:21037

約数の個数: 16

約数和(自身を含む): 33235488

約数和(自身を除く): 13387462

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 20981, 41962, 230791, 461582, 902183, 1804366, 9924013, 19848026]

約数ペア:

[(1, 19848026), (2, 9924013), (11, 1804366), (22, 902183), (43, 461582), (86, 230791), (473, 41962), (946, 20981)]