19730739

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1489}}^1$

素因数の和:2130

約数の個数: 16

約数和(自身を含む): 30133760

約数和(自身を除く): 10403021

約数列:

[1, 3, 7, 21, 631, 1489, 1893, 4417, 4467, 10423, 13251, 31269, 939559, 2818677, 6576913, 19730739]

約数ペア:

[(1, 19730739), (3, 6576913), (7, 2818677), (21, 939559), (631, 31269), (1489, 13251), (1893, 10423), (4417, 4467)]