21068216

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15583}}^1$

素因数の和:15615

約数の個数: 24

約数和(自身を含む): 42778080

約数和(自身を除く): 21709864

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15583, 31166, 62332, 124664, 202579, 405158, 810316, 1620632, 2633527, 5267054, 10534108, 21068216]

約数ペア:

[(1, 21068216), (2, 10534108), (4, 5267054), (8, 2633527), (13, 1620632), (26, 810316), (52, 405158), (104, 202579), (169, 124664), (338, 62332), (676, 31166), (1352, 15583)]