18477801

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{1453}}^1$

素因数の和:1622

約数の個数: 20

約数和(自身を含む): 27797572

約数和(自身を除く): 9319771

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 1453, 4239, 4359, 12717, 13077, 39231, 117693, 228121, 684363, 2053089, 6159267, 18477801]

約数ペア:

[(1, 18477801), (3, 6159267), (9, 2053089), (27, 684363), (81, 228121), (157, 117693), (471, 39231), (1413, 13077), (1453, 12717), (4239, 4359)]