21400740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39631}}^1$

素因数の和:39649

約数の個数: 48

約数和(自身を含む): 66581760

約数和(自身を除く): 45181020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39631, 79262, 118893, 158524, 198155, 237786, 356679, 396310, 475572, 594465, 713358, 792620, 1070037, 1188930, 1426716, 1783395, 2140074, 2377860, 3566790, 4280148, 5350185, 7133580, 10700370, 21400740]

約数ペア:

[(1, 21400740), (2, 10700370), (3, 7133580), (4, 5350185), (5, 4280148), (6, 3566790), (9, 2377860), (10, 2140074), (12, 1783395), (15, 1426716), (18, 1188930), (20, 1070037), (27, 792620), (30, 713358), (36, 594465), (45, 475572), (54, 396310), (60, 356679), (90, 237786), (108, 198155), (135, 158524), (180, 118893), (270, 79262), (540, 39631)]