21330141

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1134

約数の個数: 32

約数和(自身を含む): 34944000

約数和(自身を除く): 13613859

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1091, 2793, 3273, 6517, 7637, 19551, 20729, 22911, 53459, 62187, 145103, 160377, 374213, 435309, 1015721, 1122639, 3047163, 7110047, 21330141]

約数ペア:

[(1, 21330141), (3, 7110047), (7, 3047163), (19, 1122639), (21, 1015721), (49, 435309), (57, 374213), (133, 160377), (147, 145103), (343, 62187), (399, 53459), (931, 22911), (1029, 20729), (1091, 19551), (2793, 7637), (3273, 6517)]