21340424

素因数分解:

$2^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2909}}^1$

素因数の和:3053

約数の個数: 32

約数和(自身を含む): 46094400

約数和(自身を除く): 24753976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 131, 262, 524, 917, 1048, 1834, 2909, 3668, 5818, 7336, 11636, 20363, 23272, 40726, 81452, 162904, 381079, 762158, 1524316, 2667553, 3048632, 5335106, 10670212, 21340424]

約数ペア:

[(1, 21340424), (2, 10670212), (4, 5335106), (7, 3048632), (8, 2667553), (14, 1524316), (28, 762158), (56, 381079), (131, 162904), (262, 81452), (524, 40726), (917, 23272), (1048, 20363), (1834, 11636), (2909, 7336), (3668, 5818)]