261917181

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{6661}}^1$

素因数の和:6941

約数の個数: 24

約数和(自身を含む): 402198264

約数和(自身を除く): 140281083

約数列:

[1, 3, 9, 17, 51, 153, 257, 771, 2313, 4369, 6661, 13107, 19983, 39321, 59949, 113237, 339711, 1019133, 1711877, 5135631, 15406893, 29101909, 87305727, 261917181]

約数ペア:

[(1, 261917181), (3, 87305727), (9, 29101909), (17, 15406893), (51, 5135631), (153, 1711877), (257, 1019133), (771, 339711), (2313, 113237), (4369, 59949), (6661, 39321), (13107, 19983)]