20501239

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 23189760

約数和(自身を除く): 2688521

約数列:

[1, 11, 43, 89, 473, 487, 979, 3827, 5357, 20941, 42097, 43343, 230351, 476773, 1863749, 20501239]

約数ペア:

[(1, 20501239), (11, 1863749), (43, 476773), (89, 230351), (473, 43343), (487, 42097), (979, 20941), (3827, 5357)]