20369321

素因数分解:

$7^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 23802240

約数和(自身を除く): 3432919

約数列:

[1, 7, 97, 131, 229, 679, 917, 1603, 12707, 22213, 29999, 88949, 155491, 209993, 2909903, 20369321]

約数ペア:

[(1, 20369321), (7, 2909903), (97, 209993), (131, 155491), (229, 88949), (679, 29999), (917, 22213), (1603, 12707)]