21345303

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{877}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 34839040

約数和(自身を除く): 13493737

約数列:

[1, 3, 7, 19, 21, 57, 61, 133, 183, 399, 427, 877, 1159, 1281, 2631, 3477, 6139, 8113, 16663, 18417, 24339, 49989, 53497, 116641, 160491, 349923, 374479, 1016443, 1123437, 3049329, 7115101, 21345303]

約数ペア:

[(1, 21345303), (3, 7115101), (7, 3049329), (19, 1123437), (21, 1016443), (57, 374479), (61, 349923), (133, 160491), (183, 116641), (399, 53497), (427, 49989), (877, 24339), (1159, 18417), (1281, 16663), (2631, 8113), (3477, 6139)]