19796972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12281}}^1$

素因数の和:12329

約数の個数: 24

約数和(自身を含む): 38516352

約数和(自身を除く): 18719380

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12281, 24562, 49124, 159653, 319306, 380711, 638612, 761422, 1522844, 4949243, 9898486, 19796972]

約数ペア:

[(1, 19796972), (2, 9898486), (4, 4949243), (13, 1522844), (26, 761422), (31, 638612), (52, 380711), (62, 319306), (124, 159653), (403, 49124), (806, 24562), (1612, 12281)]