211287513

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 295488000

約数和(自身を除く): 84200487

約数列:

[1, 3, 47, 89, 113, 141, 149, 267, 339, 447, 4183, 5311, 7003, 10057, 12549, 13261, 15933, 16837, 21009, 30171, 39783, 50511, 472679, 623267, 791339, 1418037, 1498493, 1869801, 2374017, 4495479, 70429171, 211287513]

約数ペア:

[(1, 211287513), (3, 70429171), (47, 4495479), (89, 2374017), (113, 1869801), (141, 1498493), (149, 1418037), (267, 791339), (339, 623267), (447, 472679), (4183, 50511), (5311, 39783), (7003, 30171), (10057, 21009), (12549, 16837), (13261, 15933)]