20319279

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1\times {\mathrm{347}}^1$

素因数の和:630

約数の個数: 16

約数和(自身を含む): 27561600

約数和(自身を除く): 7242321

約数列:

[1, 3, 131, 149, 347, 393, 447, 1041, 19519, 45457, 51703, 58557, 136371, 155109, 6773093, 20319279]

約数ペア:

[(1, 20319279), (3, 6773093), (131, 155109), (149, 136371), (347, 58557), (393, 51703), (447, 45457), (1041, 19519)]