20343428

素因数分解:

$2^2\times 7^2\times {\mathrm{271}}^1\times {\mathrm{383}}^1$

素因数の和:672

約数の個数: 36

約数和(自身を含む): 41674752

約数和(自身を除く): 21331324

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 271, 383, 542, 766, 1084, 1532, 1897, 2681, 3794, 5362, 7588, 10724, 13279, 18767, 26558, 37534, 53116, 75068, 103793, 207586, 415172, 726551, 1453102, 2906204, 5085857, 10171714, 20343428]

約数ペア:

[(1, 20343428), (2, 10171714), (4, 5085857), (7, 2906204), (14, 1453102), (28, 726551), (49, 415172), (98, 207586), (196, 103793), (271, 75068), (383, 53116), (542, 37534), (766, 26558), (1084, 18767), (1532, 13279), (1897, 10724), (2681, 7588), (3794, 5362)]