18901431

素因数分解:

$3^4\times {\mathrm{229}}^1\times {\mathrm{1019}}^1$

素因数の和:1260

約数の個数: 20

約数和(自身を含む): 28386600

約数和(自身を除く): 9485169

約数列:

[1, 3, 9, 27, 81, 229, 687, 1019, 2061, 3057, 6183, 9171, 18549, 27513, 82539, 233351, 700053, 2100159, 6300477, 18901431]

約数ペア:

[(1, 18901431), (3, 6300477), (9, 2100159), (27, 700053), (81, 233351), (229, 82539), (687, 27513), (1019, 18549), (2061, 9171), (3057, 6183)]