7121751

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1373}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 12311040

約数和(自身を除く): 5189289

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1373, 1729, 4119, 5187, 9611, 17849, 26087, 28833, 53547, 78261, 124943, 182609, 339131, 374829, 547827, 1017393, 2373917, 7121751]

約数ペア:

[(1, 7121751), (3, 2373917), (7, 1017393), (13, 547827), (19, 374829), (21, 339131), (39, 182609), (57, 124943), (91, 78261), (133, 53547), (247, 28833), (273, 26087), (399, 17849), (741, 9611), (1373, 5187), (1729, 4119)]