21079702

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11321}}^1$

素因数の和:11356

約数の個数: 24

約数和(自身を含む): 38721240

約数和(自身を除く): 17641538

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11321, 22642, 79247, 158494, 215099, 430198, 554729, 1109458, 1505693, 3011386, 10539851, 21079702]

約数ペア:

[(1, 21079702), (2, 10539851), (7, 3011386), (14, 1505693), (19, 1109458), (38, 554729), (49, 430198), (98, 215099), (133, 158494), (266, 79247), (931, 22642), (1862, 11321)]