21228249

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19073}}^1$

素因数の和:19136

約数の個数: 16

約数和(自身を含む): 32959872

約数和(自身を除く): 11731623

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19073, 57219, 133511, 400533, 1010869, 3032607, 7076083, 21228249]

約数ペア:

[(1, 21228249), (3, 7076083), (7, 3032607), (21, 1010869), (53, 400533), (159, 133511), (371, 57219), (1113, 19073)]