21092747

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 23543520

約数和(自身を除く): 2450773

約数列:

[1, 13, 43, 97, 389, 559, 1261, 4171, 5057, 16727, 37733, 54223, 217451, 490529, 1622519, 21092747]

約数ペア:

[(1, 21092747), (13, 1622519), (43, 490529), (97, 217451), (389, 54223), (559, 37733), (1261, 16727), (4171, 5057)]