20860791

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{5147}}^1$

素因数の和:5350

約数の個数: 16

約数和(自身を含む): 31958784

約数和(自身を除く): 11097993

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 5147, 15441, 36029, 108087, 993371, 2980113, 6953597, 20860791]

約数ペア:

[(1, 20860791), (3, 6953597), (7, 2980113), (21, 993371), (193, 108087), (579, 36029), (1351, 15441), (4053, 5147)]