21386267

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{1423}}^1$

素因数の和:1562

約数の個数: 16

約数和(自身を含む): 25973760

約数和(自身を除く): 4587493

約数列:

[1, 7, 19, 113, 133, 791, 1423, 2147, 9961, 15029, 27037, 160799, 189259, 1125593, 3055181, 21386267]

約数ペア:

[(1, 21386267), (7, 3055181), (19, 1125593), (113, 189259), (133, 160799), (791, 27037), (1423, 15029), (2147, 9961)]