18967641

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{523}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 31792128

約数和(自身を除く): 12824487

約数列:

[1, 3, 7, 11, 21, 33, 77, 157, 231, 471, 523, 1099, 1569, 1727, 3297, 3661, 5181, 5753, 10983, 12089, 17259, 36267, 40271, 82111, 120813, 246333, 574777, 903221, 1724331, 2709663, 6322547, 18967641]

約数ペア:

[(1, 18967641), (3, 6322547), (7, 2709663), (11, 1724331), (21, 903221), (33, 574777), (77, 246333), (157, 120813), (231, 82111), (471, 40271), (523, 36267), (1099, 17259), (1569, 12089), (1727, 10983), (3297, 5753), (3661, 5181)]