21187018

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:909

約数の個数: 16

約数和(自身を含む): 32472000

約数和(自身を除く): 11284982

約数列:

[1, 2, 59, 118, 409, 439, 818, 878, 24131, 25901, 48262, 51802, 179551, 359102, 10593509, 21187018]

約数ペア:

[(1, 21187018), (2, 10593509), (59, 359102), (118, 179551), (409, 51802), (439, 48262), (818, 25901), (878, 24131)]