121781961

素因数分解:

$3^4\times 7^1\times {\mathrm{214783}}^1$

素因数の和:214802

約数の個数: 20

約数和(自身を含む): 207910912

約数和(自身を除く): 86128951

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 214783, 644349, 1503481, 1933047, 4510443, 5799141, 13531329, 17397423, 40593987, 121781961]

約数ペア:

[(1, 121781961), (3, 40593987), (7, 17397423), (9, 13531329), (21, 5799141), (27, 4510443), (63, 1933047), (81, 1503481), (189, 644349), (567, 214783)]