20371257

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5351}}^1$

素因数の和:5410

約数の個数: 20

約数和(自身を含む): 31084416

約数和(自身を除く): 10713159

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5351, 16053, 48159, 144477, 251497, 433431, 754491, 2263473, 6790419, 20371257]

約数ペア:

[(1, 20371257), (3, 6790419), (9, 2263473), (27, 754491), (47, 433431), (81, 251497), (141, 144477), (423, 48159), (1269, 16053), (3807, 5351)]