207978519

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{2789}}^1$

素因数の和:2919

約数の個数: 32

約数和(自身を含む): 327836160

約数和(自身を除く): 119857641

約数列:

[1, 3, 7, 21, 53, 67, 159, 201, 371, 469, 1113, 1407, 2789, 3551, 8367, 10653, 19523, 24857, 58569, 74571, 147817, 186863, 443451, 560589, 1034719, 1308041, 3104157, 3924123, 9903739, 29711217, 69326173, 207978519]

約数ペア:

[(1, 207978519), (3, 69326173), (7, 29711217), (21, 9903739), (53, 3924123), (67, 3104157), (159, 1308041), (201, 1034719), (371, 560589), (469, 443451), (1113, 186863), (1407, 147817), (2789, 74571), (3551, 58569), (8367, 24857), (10653, 19523)]