19869718

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{1409}}^1$

素因数の和:2063

約数の個数: 16

約数和(自身を含む): 32587920

約数和(自身を除く): 12718202

約数列:

[1, 2, 11, 22, 641, 1282, 1409, 2818, 7051, 14102, 15499, 30998, 903169, 1806338, 9934859, 19869718]

約数ペア:

[(1, 19869718), (2, 9934859), (11, 1806338), (22, 903169), (641, 30998), (1282, 15499), (1409, 14102), (2818, 7051)]