20137201

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 3622799

約数列:

[1, 7, 43, 149, 301, 449, 1043, 3143, 6407, 19307, 44849, 66901, 135149, 468307, 2876743, 20137201]

約数ペア:

[(1, 20137201), (7, 2876743), (43, 468307), (149, 135149), (301, 66901), (449, 44849), (1043, 19307), (3143, 6407)]