21574553

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3079}}^1$

素因数の和:3117

約数の個数: 24

約数和(自身を含む): 29494080

約数和(自身を除く): 7919527

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 3079, 7007, 21553, 33869, 40027, 150871, 237083, 280189, 440297, 1659581, 1961323, 3082079, 21574553]

約数ペア:

[(1, 21574553), (7, 3082079), (11, 1961323), (13, 1659581), (49, 440297), (77, 280189), (91, 237083), (143, 150871), (539, 40027), (637, 33869), (1001, 21553), (3079, 7007)]