20869983

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 30888000

約数和(自身を除く): 10018017

約数列:

[1, 3, 9, 79, 149, 197, 237, 447, 591, 711, 1341, 1773, 11771, 15563, 29353, 35313, 46689, 88059, 105939, 140067, 264177, 2318887, 6956661, 20869983]

約数ペア:

[(1, 20869983), (3, 6956661), (9, 2318887), (79, 264177), (149, 140067), (197, 105939), (237, 88059), (447, 46689), (591, 35313), (711, 29353), (1341, 15563), (1773, 11771)]