20992941

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 31056480

約数和(自身を除く): 10063539

約数列:

[1, 3, 9, 83, 157, 179, 249, 471, 537, 747, 1413, 1611, 13031, 14857, 28103, 39093, 44571, 84309, 117279, 133713, 252927, 2332549, 6997647, 20992941]

約数ペア:

[(1, 20992941), (3, 6997647), (9, 2332549), (83, 252927), (157, 133713), (179, 117279), (249, 84309), (471, 44571), (537, 39093), (747, 28103), (1413, 14857), (1611, 13031)]