2157275519

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{216877}}^1$

素因数の和:216927

約数の個数: 16

約数和(自身を含む): 2602536000

約数和(自身を除く): 445260481

約数列:

[1, 7, 29, 49, 203, 343, 1421, 9947, 216877, 1518139, 6289433, 10626973, 44026031, 74388811, 308182217, 2157275519]

約数ペア:

[(1, 2157275519), (7, 308182217), (29, 74388811), (49, 44026031), (203, 10626973), (343, 6289433), (1421, 1518139), (9947, 216877)]