21786297

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 31850784

約数和(自身を除く): 10064487

約数列:

[1, 3, 13, 39, 97, 169, 291, 443, 507, 1261, 1329, 3783, 5759, 16393, 17277, 42971, 49179, 74867, 128913, 224601, 558623, 1675869, 7262099, 21786297]

約数ペア:

[(1, 21786297), (3, 7262099), (13, 1675869), (39, 558623), (97, 224601), (169, 128913), (291, 74867), (443, 49179), (507, 42971), (1261, 17277), (1329, 16393), (3783, 5759)]