219920631

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{1009}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 342074880

約数和(自身を除く): 122154249

約数列:

[1, 3, 7, 21, 97, 107, 291, 321, 679, 749, 1009, 2037, 2247, 3027, 7063, 10379, 21189, 31137, 72653, 97873, 107963, 217959, 293619, 323889, 685111, 755741, 2055333, 2267223, 10472411, 31417233, 73306877, 219920631]

約数ペア:

[(1, 219920631), (3, 73306877), (7, 31417233), (21, 10472411), (97, 2267223), (107, 2055333), (291, 755741), (321, 685111), (679, 323889), (749, 293619), (1009, 217959), (2037, 107963), (2247, 97873), (3027, 72653), (7063, 31137), (10379, 21189)]