21850479

素因数分解:

$3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1$

素因数の和:541

約数の個数: 40

約数和(自身を含む): 37810080

約数和(自身を除く): 15959601

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 267, 433, 567, 623, 801, 1299, 1869, 2403, 3031, 3897, 5607, 7209, 9093, 11691, 16821, 27279, 35073, 38537, 50463, 81837, 115611, 245511, 269759, 346833, 809277, 1040499, 2427831, 3121497, 7283493, 21850479]

約数ペア:

[(1, 21850479), (3, 7283493), (7, 3121497), (9, 2427831), (21, 1040499), (27, 809277), (63, 346833), (81, 269759), (89, 245511), (189, 115611), (267, 81837), (433, 50463), (567, 38537), (623, 35073), (801, 27279), (1299, 16821), (1869, 11691), (2403, 9093), (3031, 7209), (3897, 5607)]