20529223

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 25144448

約数和(自身を除く): 4615225

約数列:

[1, 11, 13, 31, 121, 143, 341, 403, 421, 1573, 3751, 4433, 4631, 5473, 13051, 48763, 50941, 60203, 143561, 169663, 662233, 1579171, 1866293, 20529223]

約数ペア:

[(1, 20529223), (11, 1866293), (13, 1579171), (31, 662233), (121, 169663), (143, 143561), (341, 60203), (403, 50941), (421, 48763), (1573, 13051), (3751, 5473), (4433, 4631)]