27971489

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5039}}^1$

素因数の和:5120

約数の個数: 16

約数和(自身を含む): 34997760

約数和(自身を除く): 7026271

約数列:

[1, 7, 13, 61, 91, 427, 793, 5039, 5551, 35273, 65507, 307379, 458549, 2151653, 3995927, 27971489]

約数ペア:

[(1, 27971489), (7, 3995927), (13, 2151653), (61, 458549), (91, 307379), (427, 65507), (793, 35273), (5039, 5551)]