21996487

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 24587712

約数和(自身を除く): 2591225

約数列:

[1, 17, 23, 101, 391, 557, 1717, 2323, 9469, 12811, 39491, 56257, 217787, 956369, 1293911, 21996487]

約数ペア:

[(1, 21996487), (17, 1293911), (23, 956369), (101, 217787), (391, 56257), (557, 39491), (1717, 12811), (2323, 9469)]