21518427

素因数分解:

$3^1\times 7^1\times {\mathrm{929}}^1\times {\mathrm{1103}}^1$

素因数の和:2042

約数の個数: 16

約数和(自身を含む): 32855040

約数和(自身を除く): 11336613

約数列:

[1, 3, 7, 21, 929, 1103, 2787, 3309, 6503, 7721, 19509, 23163, 1024687, 3074061, 7172809, 21518427]

約数ペア:

[(1, 21518427), (3, 7172809), (7, 3074061), (21, 1024687), (929, 23163), (1103, 19509), (2787, 7721), (3309, 6503)]