31520151

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1009}}^1$

素因数の和:1120

約数の個数: 32

約数和(自身を含む): 50904000

約数和(自身を除く): 19383849

約数列:

[1, 3, 9, 13, 27, 39, 89, 117, 267, 351, 801, 1009, 1157, 2403, 3027, 3471, 9081, 10413, 13117, 27243, 31239, 39351, 89801, 118053, 269403, 354159, 808209, 1167413, 2424627, 3502239, 10506717, 31520151]

約数ペア:

[(1, 31520151), (3, 10506717), (9, 3502239), (13, 2424627), (27, 1167413), (39, 808209), (89, 354159), (117, 269403), (267, 118053), (351, 89801), (801, 39351), (1009, 31239), (1157, 27243), (2403, 13117), (3027, 10413), (3471, 9081)]