21321440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19037}}^1$

素因数の和:19059

約数の個数: 48

約数和(自身を含む): 57570912

約数和(自身を除く): 36249472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19037, 38074, 76148, 95185, 133259, 152296, 190370, 266518, 304592, 380740, 533036, 609184, 666295, 761480, 1066072, 1332590, 1522960, 2132144, 2665180, 3045920, 4264288, 5330360, 10660720, 21321440]

約数ペア:

[(1, 21321440), (2, 10660720), (4, 5330360), (5, 4264288), (7, 3045920), (8, 2665180), (10, 2132144), (14, 1522960), (16, 1332590), (20, 1066072), (28, 761480), (32, 666295), (35, 609184), (40, 533036), (56, 380740), (70, 304592), (80, 266518), (112, 190370), (140, 152296), (160, 133259), (224, 95185), (280, 76148), (560, 38074), (1120, 19037)]