21293471

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 23337600

約数和(自身を除く): 2044129

約数列:

[1, 19, 43, 67, 389, 817, 1273, 2881, 7391, 16727, 26063, 54739, 317813, 495197, 1120709, 21293471]

約数ペア:

[(1, 21293471), (19, 1120709), (43, 495197), (67, 317813), (389, 54739), (817, 26063), (1273, 16727), (2881, 7391)]