21081364

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{863}}^1$

素因数の和:1095

約数の個数: 24

約数和(自身を含む): 38320128

約数和(自身を除く): 17238764

約数列:

[1, 2, 4, 31, 62, 124, 197, 394, 788, 863, 1726, 3452, 6107, 12214, 24428, 26753, 53506, 107012, 170011, 340022, 680044, 5270341, 10540682, 21081364]

約数ペア:

[(1, 21081364), (2, 10540682), (4, 5270341), (31, 680044), (62, 340022), (124, 170011), (197, 107012), (394, 53506), (788, 26753), (863, 24428), (1726, 12214), (3452, 6107)]