21127407

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{27191}}^1$

素因数の和:27238

約数の個数: 16

約数和(自身を含む): 33065472

約数和(自身を除く): 11938065

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 27191, 81573, 190337, 571011, 1006067, 3018201, 7042469, 21127407]

約数ペア:

[(1, 21127407), (3, 7042469), (7, 3018201), (21, 1006067), (37, 571011), (111, 190337), (259, 81573), (777, 27191)]