20980807

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 23627520

約数和(自身を除く): 2646713

約数列:

[1, 19, 23, 41, 437, 779, 943, 1171, 17917, 22249, 26933, 48011, 511727, 912209, 1104253, 20980807]

約数ペア:

[(1, 20980807), (19, 1104253), (23, 912209), (41, 511727), (437, 48011), (779, 26933), (943, 22249), (1171, 17917)]