21092516

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2689}}^1$

素因数の和:2783

約数の個数: 24

約数和(自身を含む): 38639160

約数和(自身を除く): 17546644

約数列:

[1, 2, 4, 37, 53, 74, 106, 148, 212, 1961, 2689, 3922, 5378, 7844, 10756, 99493, 142517, 198986, 285034, 397972, 570068, 5273129, 10546258, 21092516]

約数ペア:

[(1, 21092516), (2, 10546258), (4, 5273129), (37, 570068), (53, 397972), (74, 285034), (106, 198986), (148, 142517), (212, 99493), (1961, 10756), (2689, 7844), (3922, 5378)]