21573447

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{9601}}^1$

素因数の和:9718

約数の個数: 16

約数和(自身を含む): 33184512

約数和(自身を除く): 11611065

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 9601, 28803, 67207, 201621, 1027307, 3081921, 7191149, 21573447]

約数ペア:

[(1, 21573447), (3, 7191149), (7, 3081921), (21, 1027307), (107, 201621), (321, 67207), (749, 28803), (2247, 9601)]