20497347

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2539}}^1$

素因数の和:2584

約数の個数: 32

約数和(自身を含む): 34137600

約数和(自身を除く): 13640253

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 207, 299, 351, 621, 897, 2539, 2691, 7617, 8073, 22851, 33007, 58397, 68553, 99021, 175191, 297063, 525573, 759161, 891189, 1576719, 2277483, 6832449, 20497347]

約数ペア:

[(1, 20497347), (3, 6832449), (9, 2277483), (13, 1576719), (23, 891189), (27, 759161), (39, 525573), (69, 297063), (117, 175191), (207, 99021), (299, 68553), (351, 58397), (621, 33007), (897, 22851), (2539, 8073), (2691, 7617)]