31921351

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 42172416

約数和(自身を除く): 10251065

約数列:

[1, 7, 11, 31, 43, 77, 217, 301, 311, 341, 473, 1333, 2177, 2387, 3311, 3421, 9331, 9641, 13373, 14663, 23947, 67487, 93611, 102641, 106051, 147103, 414563, 742357, 1029721, 2901941, 4560193, 31921351]

約数ペア:

[(1, 31921351), (7, 4560193), (11, 2901941), (31, 1029721), (43, 742357), (77, 414563), (217, 147103), (301, 106051), (311, 102641), (341, 93611), (473, 67487), (1333, 23947), (2177, 14663), (2387, 13373), (3311, 9641), (3421, 9331)]