20758871

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{353}}^1$

素因数の和:662

約数の個数: 16

約数和(自身を含む): 24649728

約数和(自身を除く): 3890857

約数列:

[1, 7, 31, 217, 271, 353, 1897, 2471, 8401, 10943, 58807, 76601, 95663, 669641, 2965553, 20758871]

約数ペア:

[(1, 20758871), (7, 2965553), (31, 669641), (217, 95663), (271, 76601), (353, 58807), (1897, 10943), (2471, 8401)]