20209923

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4261}}^1$

素因数の和:4315

約数の個数: 24

約数和(自身を含む): 31913856

約数和(自身を除く): 11703933

約数列:

[1, 3, 9, 17, 31, 51, 93, 153, 279, 527, 1581, 4261, 4743, 12783, 38349, 72437, 132091, 217311, 396273, 651933, 1188819, 2245547, 6736641, 20209923]

約数ペア:

[(1, 20209923), (3, 6736641), (9, 2245547), (17, 1188819), (31, 651933), (51, 396273), (93, 217311), (153, 132091), (279, 72437), (527, 38349), (1581, 12783), (4261, 4743)]