20388627

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19037}}^1$

素因数の和:19067

約数の個数: 24

約数和(自身を含む): 35639136

約数和(自身を除く): 15250509

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19037, 57111, 133259, 171333, 323629, 399777, 970887, 1199331, 2265403, 2912661, 6796209, 20388627]

約数ペア:

[(1, 20388627), (3, 6796209), (7, 2912661), (9, 2265403), (17, 1199331), (21, 970887), (51, 399777), (63, 323629), (119, 171333), (153, 133259), (357, 57111), (1071, 19037)]