21643336

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18919}}^1$

素因数の和:18949

約数の個数: 32

約数和(自身を含む): 47678400

約数和(自身を除く): 26035064

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18919, 37838, 75676, 151352, 208109, 245947, 416218, 491894, 832436, 983788, 1664872, 1967576, 2705417, 5410834, 10821668, 21643336]

約数ペア:

[(1, 21643336), (2, 10821668), (4, 5410834), (8, 2705417), (11, 1967576), (13, 1664872), (22, 983788), (26, 832436), (44, 491894), (52, 416218), (88, 245947), (104, 208109), (143, 151352), (286, 75676), (572, 37838), (1144, 18919)]