20406451

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 23143680

約数和(自身を除く): 2737229

約数列:

[1, 13, 23, 139, 299, 491, 1807, 3197, 6383, 11293, 41561, 68249, 146809, 887237, 1569727, 20406451]

約数ペア:

[(1, 20406451), (13, 1569727), (23, 887237), (139, 146809), (299, 68249), (491, 41561), (1807, 11293), (3197, 6383)]