21093667

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:335

約数の個数: 24

約数和(自身を含む): 26174400

約数和(自身を除く): 5080733

約数列:

[1, 7, 19, 49, 133, 139, 163, 931, 973, 1141, 2641, 3097, 6811, 7987, 18487, 21679, 22657, 129409, 151753, 158599, 430483, 1110193, 3013381, 21093667]

約数ペア:

[(1, 21093667), (7, 3013381), (19, 1110193), (49, 430483), (133, 158599), (139, 151753), (163, 129409), (931, 22657), (973, 21679), (1141, 18487), (2641, 7987), (3097, 6811)]