40278021

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61871}}^1$

素因数の和:61912

約数の個数: 16

約数和(自身を含む): 63356928

約数和(自身を除く): 23078907

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 61871, 185613, 433097, 1299291, 1918001, 5754003, 13426007, 40278021]

約数ペア:

[(1, 40278021), (3, 13426007), (7, 5754003), (21, 1918001), (31, 1299291), (93, 433097), (217, 185613), (651, 61871)]