31480701

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 50856960

約数和(自身を除く): 19376259

約数列:

[1, 3, 7, 19, 21, 57, 133, 257, 307, 399, 771, 921, 1799, 2149, 4883, 5397, 5833, 6447, 14649, 17499, 34181, 40831, 78899, 102543, 122493, 236697, 552293, 1499081, 1656879, 4497243, 10493567, 31480701]

約数ペア:

[(1, 31480701), (3, 10493567), (7, 4497243), (19, 1656879), (21, 1499081), (57, 552293), (133, 236697), (257, 122493), (307, 102543), (399, 78899), (771, 40831), (921, 34181), (1799, 17499), (2149, 14649), (4883, 6447), (5397, 5833)]