168408891

素因数分解:

$3^2\times 7^1\times {\mathrm{1237}}^1\times {\mathrm{2161}}^1$

素因数の和:3411

約数の個数: 24

約数和(自身を含む): 278361824

約数和(自身を除く): 109952933

約数列:

[1, 3, 7, 9, 21, 63, 1237, 2161, 3711, 6483, 8659, 11133, 15127, 19449, 25977, 45381, 77931, 136143, 2673157, 8019471, 18712099, 24058413, 56136297, 168408891]

約数ペア:

[(1, 168408891), (3, 56136297), (7, 24058413), (9, 18712099), (21, 8019471), (63, 2673157), (1237, 136143), (2161, 77931), (3711, 45381), (6483, 25977), (8659, 19449), (11133, 15127)]