21292866

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{168991}}^1$

素因数の和:169006

約数の個数: 24

約数和(自身を含む): 52725504

約数和(自身を除く): 31432638

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 168991, 337982, 506973, 1013946, 1182937, 1520919, 2365874, 3041838, 3548811, 7097622, 10646433, 21292866]

約数ペア:

[(1, 21292866), (2, 10646433), (3, 7097622), (6, 3548811), (7, 3041838), (9, 2365874), (14, 1520919), (18, 1182937), (21, 1013946), (42, 506973), (63, 337982), (126, 168991)]