21536481

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{8039}}^1$

素因数の和:8108

約数の個数: 16

約数和(自身を含む): 30873600

約数和(自身を除く): 9337119

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 8039, 24117, 152741, 377833, 458223, 1133499, 7178827, 21536481]

約数ペア:

[(1, 21536481), (3, 7178827), (19, 1133499), (47, 458223), (57, 377833), (141, 152741), (893, 24117), (2679, 8039)]