19347993

素因数分解:

$3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:694

約数の個数: 36

約数和(自身を含む): 33010068

約数和(自身を除く): 13662075

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 147, 219, 441, 511, 601, 657, 1533, 1803, 3577, 4207, 4599, 5409, 10731, 12621, 29449, 32193, 37863, 43873, 88347, 131619, 265041, 307111, 394857, 921333, 2149777, 2763999, 6449331, 19347993]

約数ペア:

[(1, 19347993), (3, 6449331), (7, 2763999), (9, 2149777), (21, 921333), (49, 394857), (63, 307111), (73, 265041), (147, 131619), (219, 88347), (441, 43873), (511, 37863), (601, 32193), (657, 29449), (1533, 12621), (1803, 10731), (3577, 5409), (4207, 4599)]