21048621

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 32126976

約数和(自身を除く): 11078355

約数列:

[1, 3, 11, 33, 41, 47, 123, 141, 331, 451, 517, 993, 1353, 1551, 1927, 3641, 5781, 10923, 13571, 15557, 21197, 40713, 46671, 63591, 149281, 171127, 447843, 513381, 637837, 1913511, 7016207, 21048621]

約数ペア:

[(1, 21048621), (3, 7016207), (11, 1913511), (33, 637837), (41, 513381), (47, 447843), (123, 171127), (141, 149281), (331, 63591), (451, 46671), (517, 40713), (993, 21197), (1353, 15557), (1551, 13571), (1927, 10923), (3641, 5781)]