19734309

素因数分解:

$3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:706

約数の個数: 36

約数和(自身を含む): 33668076

約数和(自身を除く): 13933767

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 147, 219, 441, 511, 613, 657, 1533, 1839, 3577, 4291, 4599, 5517, 10731, 12873, 30037, 32193, 38619, 44749, 90111, 134247, 270333, 313243, 402741, 939729, 2192701, 2819187, 6578103, 19734309]

約数ペア:

[(1, 19734309), (3, 6578103), (7, 2819187), (9, 2192701), (21, 939729), (49, 402741), (63, 313243), (73, 270333), (147, 134247), (219, 90111), (441, 44749), (511, 38619), (613, 32193), (657, 30037), (1533, 12873), (1839, 10731), (3577, 5517), (4291, 4599)]