20803398

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1217}}^1$

素因数の和:1277

約数の個数: 64

約数和(自身を含む): 53319168

約数和(自身を除く): 32515770

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 37, 42, 66, 74, 77, 111, 154, 222, 231, 259, 407, 462, 518, 777, 814, 1217, 1221, 1554, 2434, 2442, 2849, 3651, 5698, 7302, 8519, 8547, 13387, 17038, 17094, 25557, 26774, 40161, 45029, 51114, 80322, 90058, 93709, 135087, 187418, 270174, 281127, 315203, 495319, 562254, 630406, 945609, 990638, 1485957, 1891218, 2971914, 3467233, 6934466, 10401699, 20803398]

約数ペア:

[(1, 20803398), (2, 10401699), (3, 6934466), (6, 3467233), (7, 2971914), (11, 1891218), (14, 1485957), (21, 990638), (22, 945609), (33, 630406), (37, 562254), (42, 495319), (66, 315203), (74, 281127), (77, 270174), (111, 187418), (154, 135087), (222, 93709), (231, 90058), (259, 80322), (407, 51114), (462, 45029), (518, 40161), (777, 26774), (814, 25557), (1217, 17094), (1221, 17038), (1554, 13387), (2434, 8547), (2442, 8519), (2849, 7302), (3651, 5698)]