21127043

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:602

約数の個数: 16

約数和(自身を含む): 24793344

約数和(自身を除く): 3666301

約数列:

[1, 7, 67, 107, 421, 469, 749, 2947, 7169, 28207, 45047, 50183, 197449, 315329, 3018149, 21127043]

約数ペア:

[(1, 21127043), (7, 3018149), (67, 315329), (107, 197449), (421, 50183), (469, 45047), (749, 28207), (2947, 7169)]