21576724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7829}}^1$

素因数の和:7899

約数の個数: 24

約数和(自身を含む): 41436360

約数和(自身を除く): 19859636

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7829, 15658, 31316, 101777, 203554, 407108, 414937, 829874, 1659748, 5394181, 10788362, 21576724]

約数ペア:

[(1, 21576724), (2, 10788362), (4, 5394181), (13, 1659748), (26, 829874), (52, 414937), (53, 407108), (106, 203554), (212, 101777), (689, 31316), (1378, 15658), (2756, 7829)]