21209942

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{4507}}^1$

素因数の和:4703

約数の個数: 16

約数和(自身を含む): 34459152

約数和(自身を除く): 13249210

約数列:

[1, 2, 13, 26, 181, 362, 2353, 4507, 4706, 9014, 58591, 117182, 815767, 1631534, 10604971, 21209942]

約数ペア:

[(1, 21209942), (2, 10604971), (13, 1631534), (26, 815767), (181, 117182), (362, 58591), (2353, 9014), (4507, 4706)]