20390287

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 22205920

約数和(自身を除く): 1815633

約数列:

[1, 19, 61, 73, 241, 1159, 1387, 4453, 4579, 14701, 17593, 84607, 279319, 334267, 1073173, 20390287]

約数ペア:

[(1, 20390287), (19, 1073173), (61, 334267), (73, 279319), (241, 84607), (1159, 17593), (1387, 14701), (4453, 4579)]