18719998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{10771}}^1$

素因数の和:10863

約数の個数: 16

約数和(自身を含む): 31023360

約数和(自身を除く): 12303362

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 10771, 21542, 118481, 236962, 850909, 1701818, 9359999, 18719998]

約数ペア:

[(1, 18719998), (2, 9359999), (11, 1701818), (22, 850909), (79, 236962), (158, 118481), (869, 21542), (1738, 10771)]