21898851

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{919}}^1$

素因数の和:995

約数の個数: 24

約数和(自身を含む): 32325120

約数和(自身を除く): 10426269

約数列:

[1, 3, 13, 39, 47, 141, 169, 507, 611, 919, 1833, 2757, 7943, 11947, 23829, 35841, 43193, 129579, 155311, 465933, 561509, 1684527, 7299617, 21898851]

約数ペア:

[(1, 21898851), (3, 7299617), (13, 1684527), (39, 561509), (47, 465933), (141, 155311), (169, 129579), (507, 43193), (611, 35841), (919, 23829), (1833, 11947), (2757, 7943)]