21526531

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 24026464

約数和(自身を除く): 2499933

約数列:

[1, 13, 43, 97, 397, 559, 1261, 4171, 5161, 17071, 38509, 54223, 221923, 500617, 1655887, 21526531]

約数ペア:

[(1, 21526531), (13, 1655887), (43, 500617), (97, 221923), (397, 54223), (559, 38509), (1261, 17071), (4171, 5161)]