168221571

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 260789760

約数和(自身を除く): 92568189

約数列:

[1, 3, 7, 21, 97, 269, 291, 307, 679, 807, 921, 1883, 2037, 2149, 5649, 6447, 26093, 29779, 78279, 82583, 89337, 182651, 208453, 247749, 547953, 578081, 625359, 1734243, 8010551, 24031653, 56073857, 168221571]

約数ペア:

[(1, 168221571), (3, 56073857), (7, 24031653), (21, 8010551), (97, 1734243), (269, 625359), (291, 578081), (307, 547953), (679, 247749), (807, 208453), (921, 182651), (1883, 89337), (2037, 82583), (2149, 78279), (5649, 29779), (6447, 26093)]