21020794

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{233}}^1\times {\mathrm{571}}^1$

素因数の和:885

約数の個数: 16

約数和(自身を含む): 32123520

約数和(自身を除く): 11102726

約数列:

[1, 2, 79, 158, 233, 466, 571, 1142, 18407, 36814, 45109, 90218, 133043, 266086, 10510397, 21020794]

約数ペア:

[(1, 21020794), (2, 10510397), (79, 266086), (158, 133043), (233, 90218), (466, 45109), (571, 36814), (1142, 18407)]