131421129

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 204153600

約数和(自身を除く): 72732471

約数列:

[1, 3, 7, 21, 97, 149, 291, 433, 447, 679, 1043, 1299, 2037, 3031, 3129, 9093, 14453, 42001, 43359, 64517, 101171, 126003, 193551, 294007, 303513, 451619, 882021, 1354857, 6258149, 18774447, 43807043, 131421129]

約数ペア:

[(1, 131421129), (3, 43807043), (7, 18774447), (21, 6258149), (97, 1354857), (149, 882021), (291, 451619), (433, 303513), (447, 294007), (679, 193551), (1043, 126003), (1299, 101171), (2037, 64517), (3031, 43359), (3129, 42001), (9093, 14453)]