21551481

素因数分解:

$3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1129}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 36883200

約数和(自身を除く): 15331719

約数列:

[1, 3, 7, 9, 21, 27, 63, 101, 189, 303, 707, 909, 1129, 2121, 2727, 3387, 6363, 7903, 10161, 19089, 23709, 30483, 71127, 114029, 213381, 342087, 798203, 1026261, 2394609, 3078783, 7183827, 21551481]

約数ペア:

[(1, 21551481), (3, 7183827), (7, 3078783), (9, 2394609), (21, 1026261), (27, 798203), (63, 342087), (101, 213381), (189, 114029), (303, 71127), (707, 30483), (909, 23709), (1129, 19089), (2121, 10161), (2727, 7903), (3387, 6363)]