16639376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79997}}^1$

素因数の和:80018

約数の個数: 20

約数和(自身を含む): 34719132

約数和(自身を除く): 18079756

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 79997, 159994, 319988, 639976, 1039961, 1279952, 2079922, 4159844, 8319688, 16639376]

約数ペア:

[(1, 16639376), (2, 8319688), (4, 4159844), (8, 2079922), (13, 1279952), (16, 1039961), (26, 639976), (52, 319988), (104, 159994), (208, 79997)]