19837587

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 34286336

約数和(自身を除く): 14448749

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 121, 211, 231, 259, 363, 407, 633, 777, 847, 1221, 1477, 2321, 2541, 2849, 4431, 4477, 6963, 7807, 8547, 13431, 16247, 23421, 25531, 31339, 48741, 54649, 76593, 85877, 94017, 163947, 178717, 257631, 536151, 601139, 944647, 1803417, 2833941, 6612529, 19837587]

約数ペア:

[(1, 19837587), (3, 6612529), (7, 2833941), (11, 1803417), (21, 944647), (33, 601139), (37, 536151), (77, 257631), (111, 178717), (121, 163947), (211, 94017), (231, 85877), (259, 76593), (363, 54649), (407, 48741), (633, 31339), (777, 25531), (847, 23421), (1221, 16247), (1477, 13431), (2321, 8547), (2541, 7807), (2849, 6963), (4431, 4477)]