21787026

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{157877}}^1$

素因数の和:157905

約数の個数: 16

約数和(自身を含む): 45468864

約数和(自身を除く): 23681838

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 157877, 315754, 473631, 947262, 3631171, 7262342, 10893513, 21787026]

約数ペア:

[(1, 21787026), (2, 10893513), (3, 7262342), (6, 3631171), (23, 947262), (46, 473631), (69, 315754), (138, 157877)]