21241593

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 31574400

約数和(自身を除く): 10332807

約数列:

[1, 3, 9, 59, 109, 177, 327, 367, 531, 981, 1101, 3303, 6431, 19293, 21653, 40003, 57879, 64959, 120009, 194877, 360027, 2360177, 7080531, 21241593]

約数ペア:

[(1, 21241593), (3, 7080531), (9, 2360177), (59, 360027), (109, 194877), (177, 120009), (327, 64959), (367, 57879), (531, 40003), (981, 21653), (1101, 19293), (3303, 6431)]