18243211

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1879}}^1$

素因数の和:1978

約数の個数: 16

約数和(自身を含む): 22259200

約数和(自身を除く): 4015989

約数列:

[1, 7, 19, 73, 133, 511, 1387, 1879, 9709, 13153, 35701, 137167, 249907, 960169, 2606173, 18243211]

約数ペア:

[(1, 18243211), (7, 2606173), (19, 960169), (73, 249907), (133, 137167), (511, 35701), (1387, 13153), (1879, 9709)]