19963629

素因数分解:

$3^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 34944000

約数和(自身を除く): 14980371

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 223, 261, 343, 441, 609, 669, 1029, 1421, 1561, 1827, 2007, 3087, 4263, 4683, 6467, 9947, 10927, 12789, 14049, 19401, 29841, 32781, 45269, 58203, 76489, 89523, 98343, 135807, 229467, 316883, 407421, 688401, 950649, 2218181, 2851947, 6654543, 19963629]

約数ペア:

[(1, 19963629), (3, 6654543), (7, 2851947), (9, 2218181), (21, 950649), (29, 688401), (49, 407421), (63, 316883), (87, 229467), (147, 135807), (203, 98343), (223, 89523), (261, 76489), (343, 58203), (441, 45269), (609, 32781), (669, 29841), (1029, 19401), (1421, 14049), (1561, 12789), (1827, 10927), (2007, 9947), (3087, 6467), (4263, 4683)]