19420429

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:636

約数の個数: 16

約数和(自身を含む): 22934016

約数和(自身を除く): 3513587

約数列:

[1, 7, 41, 157, 287, 431, 1099, 3017, 6437, 17671, 45059, 67667, 123697, 473669, 2774347, 19420429]

約数ペア:

[(1, 19420429), (7, 2774347), (41, 473669), (157, 123697), (287, 67667), (431, 45059), (1099, 17671), (3017, 6437)]