138839477

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 171608064

約数和(自身を除く): 32768587

約数列:

[1, 7, 23, 61, 67, 161, 211, 427, 469, 1403, 1477, 1541, 4087, 4853, 9821, 10787, 12871, 14137, 28609, 33971, 90097, 94001, 98959, 296033, 325151, 658007, 862357, 2072231, 2276057, 6036499, 19834211, 138839477]

約数ペア:

[(1, 138839477), (7, 19834211), (23, 6036499), (61, 2276057), (67, 2072231), (161, 862357), (211, 658007), (427, 325151), (469, 296033), (1403, 98959), (1477, 94001), (1541, 90097), (4087, 33971), (4853, 28609), (9821, 14137), (10787, 12871)]