31485223

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21521}}^1$

素因数の和:21558

約数の個数: 16

約数和(自身を含む): 41322240

約数和(自身を除く): 9837017

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 21521, 150647, 236731, 408899, 1657117, 2862293, 4497889, 31485223]

約数ペア:

[(1, 31485223), (7, 4497889), (11, 2862293), (19, 1657117), (77, 408899), (133, 236731), (209, 150647), (1463, 21521)]