209121621

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{6977}}^1$

素因数の和:7180

約数の個数: 16

約数和(自身を含む): 284479104

約数和(自身を除く): 75357483

約数列:

[1, 3, 97, 103, 291, 309, 6977, 9991, 20931, 29973, 676769, 718631, 2030307, 2155893, 69707207, 209121621]

約数ペア:

[(1, 209121621), (3, 69707207), (97, 2155893), (103, 2030307), (291, 718631), (309, 676769), (6977, 29973), (9991, 20931)]