20648238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2621}}^1$

素因数の和:2740

約数の個数: 32

約数和(自身を含む): 44930592

約数和(自身を除く): 24282354

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 101, 202, 303, 606, 1313, 2621, 2626, 3939, 5242, 7863, 7878, 15726, 34073, 68146, 102219, 204438, 264721, 529442, 794163, 1588326, 3441373, 6882746, 10324119, 20648238]

約数ペア:

[(1, 20648238), (2, 10324119), (3, 6882746), (6, 3441373), (13, 1588326), (26, 794163), (39, 529442), (78, 264721), (101, 204438), (202, 102219), (303, 68146), (606, 34073), (1313, 15726), (2621, 7878), (2626, 7863), (3939, 5242)]