20497899

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{709}}^1$

素因数の和:1154

約数の個数: 16

約数和(自身を含む): 28627200

約数和(自身を除く): 8129301

約数列:

[1, 3, 23, 69, 419, 709, 1257, 2127, 9637, 16307, 28911, 48921, 297071, 891213, 6832633, 20497899]

約数ペア:

[(1, 20497899), (3, 6832633), (23, 891213), (69, 297071), (419, 48921), (709, 28911), (1257, 16307), (2127, 9637)]