19938866499

素因数分解:

$3^3\times {\mathrm{691}}^1\times {\mathrm{1068707}}^1$

素因数の和:1069407

約数の個数: 16

約数和(自身を含む): 29581837440

約数和(自身を除く): 9642970941

約数列:

[1, 3, 9, 27, 691, 2073, 6219, 18657, 1068707, 3206121, 9618363, 28855089, 738476537, 2215429611, 6646288833, 19938866499]

約数ペア:

[(1, 19938866499), (3, 6646288833), (9, 2215429611), (27, 738476537), (691, 28855089), (2073, 9618363), (6219, 3206121), (18657, 1068707)]