21073760

素因数分解:

$2^5\times 5^1\times {\mathrm{131711}}^1$

素因数の和:131726

約数の個数: 24

約数和(自身を含む): 49787136

約数和(自身を除く): 28713376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131711, 263422, 526844, 658555, 1053688, 1317110, 2107376, 2634220, 4214752, 5268440, 10536880, 21073760]

約数ペア:

[(1, 21073760), (2, 10536880), (4, 5268440), (5, 4214752), (8, 2634220), (10, 2107376), (16, 1317110), (20, 1053688), (32, 658555), (40, 526844), (80, 263422), (160, 131711)]